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<title>MADlib: array_ops.sql_in File Reference</title>
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<div class="header">
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<a href="#func-members">Functions</a>  </div>
  <div class="headertitle">
<div class="title">array_ops.sql_in File Reference</div>  </div>
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<div class="contents">

<p>implementation of array operations in SQL  
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a91c8d3715142927b3967f05a4fbf1575"><td class="memItemLeft" align="right" valign="top">anyarray&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a91c8d3715142927b3967f05a4fbf1575">array_add</a> (anyarray x, anyarray y)</td></tr>
<tr class="memdesc:a91c8d3715142927b3967f05a4fbf1575"><td class="mdescLeft">&#160;</td><td class="mdescRight">Adds two arrays. It requires that all the values are NON-NULL. Return type is the same as the input type.  <a href="#a91c8d3715142927b3967f05a4fbf1575">More...</a><br /></td></tr>
<tr class="separator:a91c8d3715142927b3967f05a4fbf1575"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a26e8508a2bae10a6574cec697a270eea"><td class="memItemLeft" align="right" valign="top">aggregate anyarray&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a26e8508a2bae10a6574cec697a270eea">sum</a> (anyarray)</td></tr>
<tr class="memdesc:a26e8508a2bae10a6574cec697a270eea"><td class="mdescLeft">&#160;</td><td class="mdescRight">Aggregate, element-wise sum of arrays. It requires that all the values are NON-NULL. Return type is the same as the input type.  <a href="#a26e8508a2bae10a6574cec697a270eea">More...</a><br /></td></tr>
<tr class="separator:a26e8508a2bae10a6574cec697a270eea"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2875a161a01c7dcdea9a4997b074eefc"><td class="memItemLeft" align="right" valign="top">anyarray&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a2875a161a01c7dcdea9a4997b074eefc">array_sub</a> (anyarray x, anyarray y)</td></tr>
<tr class="memdesc:a2875a161a01c7dcdea9a4997b074eefc"><td class="mdescLeft">&#160;</td><td class="mdescRight">Subtracts two arrays. It requires that all the values are NON-NULL. Return type is the same as the input type.  <a href="#a2875a161a01c7dcdea9a4997b074eefc">More...</a><br /></td></tr>
<tr class="separator:a2875a161a01c7dcdea9a4997b074eefc"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a652d70c480d484c4a1a92ded384b0dd7"><td class="memItemLeft" align="right" valign="top">anyarray&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a652d70c480d484c4a1a92ded384b0dd7">array_mult</a> (anyarray x, anyarray y)</td></tr>
<tr class="memdesc:a652d70c480d484c4a1a92ded384b0dd7"><td class="mdescLeft">&#160;</td><td class="mdescRight">Element-wise product of two arrays. It requires that all the values are NON-NULL. Return type is the same as the input type.  <a href="#a652d70c480d484c4a1a92ded384b0dd7">More...</a><br /></td></tr>
<tr class="separator:a652d70c480d484c4a1a92ded384b0dd7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6cc05e7052495f8b64692faf40219576"><td class="memItemLeft" align="right" valign="top">anyarray&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a6cc05e7052495f8b64692faf40219576">array_div</a> (anyarray x, anyarray y)</td></tr>
<tr class="memdesc:a6cc05e7052495f8b64692faf40219576"><td class="mdescLeft">&#160;</td><td class="mdescRight">Element-wise division of two arrays. It requires that all the values are NON-NULL. Return type is the same as the input type.  <a href="#a6cc05e7052495f8b64692faf40219576">More...</a><br /></td></tr>
<tr class="separator:a6cc05e7052495f8b64692faf40219576"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:acde10964ed23b7c8da515fb84cb8d5e0"><td class="memItemLeft" align="right" valign="top">float8&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#acde10964ed23b7c8da515fb84cb8d5e0">array_dot</a> (anyarray x, anyarray y)</td></tr>
<tr class="memdesc:acde10964ed23b7c8da515fb84cb8d5e0"><td class="mdescLeft">&#160;</td><td class="mdescRight">Dot-product of two arrays. It requires that all the values are NON-NULL. Return type is the same as the input type.  <a href="#acde10964ed23b7c8da515fb84cb8d5e0">More...</a><br /></td></tr>
<tr class="separator:acde10964ed23b7c8da515fb84cb8d5e0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aedf6cb13eb4803bcc12dc4d95ea8ff4e"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#aedf6cb13eb4803bcc12dc4d95ea8ff4e">array_contains</a> (anyarray x, anyarray y)</td></tr>
<tr class="memdesc:aedf6cb13eb4803bcc12dc4d95ea8ff4e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Checks whether one array contains the other. This function returns TRUE if each non-zero element in the right array equals to the element with the same index in the left array.  <a href="#aedf6cb13eb4803bcc12dc4d95ea8ff4e">More...</a><br /></td></tr>
<tr class="separator:aedf6cb13eb4803bcc12dc4d95ea8ff4e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae891429cc50705c530f3e5ca15541849"><td class="memItemLeft" align="right" valign="top">anyelement&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#ae891429cc50705c530f3e5ca15541849">array_max</a> (anyarray x)</td></tr>
<tr class="memdesc:ae891429cc50705c530f3e5ca15541849"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function finds the maximum value in the array. NULLs are ignored. Return type is the same as the input type.  <a href="#ae891429cc50705c530f3e5ca15541849">More...</a><br /></td></tr>
<tr class="separator:ae891429cc50705c530f3e5ca15541849"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa415256a9064aecc600dfb5e377fb7b1"><td class="memItemLeft" align="right" valign="top">float8 []&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#aa415256a9064aecc600dfb5e377fb7b1">array_max_index</a> (anyarray x)</td></tr>
<tr class="memdesc:aa415256a9064aecc600dfb5e377fb7b1"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function finds the maximum value and corresponding index in the array. NULLs are ignored. Return type is the same as the input type.  <a href="#aa415256a9064aecc600dfb5e377fb7b1">More...</a><br /></td></tr>
<tr class="separator:aa415256a9064aecc600dfb5e377fb7b1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6659bf9d9363eb179fab34f81f8ac59b"><td class="memItemLeft" align="right" valign="top">anyelement&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a6659bf9d9363eb179fab34f81f8ac59b">array_min</a> (anyarray x)</td></tr>
<tr class="memdesc:a6659bf9d9363eb179fab34f81f8ac59b"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function finds the minimum value in the array. NULLs are ignored. Return type is the same as the input type.  <a href="#a6659bf9d9363eb179fab34f81f8ac59b">More...</a><br /></td></tr>
<tr class="separator:a6659bf9d9363eb179fab34f81f8ac59b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a813a4d9ffc1c18b1b3e18f6ecdb2051f"><td class="memItemLeft" align="right" valign="top">float8 []&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a813a4d9ffc1c18b1b3e18f6ecdb2051f">array_min_index</a> (anyarray x)</td></tr>
<tr class="memdesc:a813a4d9ffc1c18b1b3e18f6ecdb2051f"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function finds the minimum value and corresponding index in the array. NULLs are ignored. Return type is the same as the input type.  <a href="#a813a4d9ffc1c18b1b3e18f6ecdb2051f">More...</a><br /></td></tr>
<tr class="separator:a813a4d9ffc1c18b1b3e18f6ecdb2051f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4c98f20e6a737358806f63318daea5ec"><td class="memItemLeft" align="right" valign="top">anyelement&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a4c98f20e6a737358806f63318daea5ec">array_sum</a> (anyarray x)</td></tr>
<tr class="memdesc:a4c98f20e6a737358806f63318daea5ec"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function finds the sum of the values in the array. NULLs are ignored. Return type is the same as the input type.  <a href="#a4c98f20e6a737358806f63318daea5ec">More...</a><br /></td></tr>
<tr class="separator:a4c98f20e6a737358806f63318daea5ec"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a418de59800833aa95f9b7cbd6b12901c"><td class="memItemLeft" align="right" valign="top">float8&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a418de59800833aa95f9b7cbd6b12901c">array_sum_big</a> (anyarray x)</td></tr>
<tr class="memdesc:a418de59800833aa95f9b7cbd6b12901c"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function finds the sum of the values in the array. NULLs are ignored. Return type is always FLOAT8 regardless of input. This function is meant to replace <a class="el" href="array__ops_8sql__in.html#a4c98f20e6a737358806f63318daea5ec" title="This function finds the sum of the values in the array. NULLs are ignored. Return type is the same as...">array_sum()</a> in the cases when sum may overflow the element type.  <a href="#a418de59800833aa95f9b7cbd6b12901c">More...</a><br /></td></tr>
<tr class="separator:a418de59800833aa95f9b7cbd6b12901c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a13c0b0c53e8b0dc4e08c21bb8152ee7d"><td class="memItemLeft" align="right" valign="top">anyelement&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a13c0b0c53e8b0dc4e08c21bb8152ee7d">array_abs_sum</a> (anyarray x)</td></tr>
<tr class="memdesc:a13c0b0c53e8b0dc4e08c21bb8152ee7d"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function finds the sum of abs of the values in the array. NULLs are ignored. Return type is the same as the input type.  <a href="#a13c0b0c53e8b0dc4e08c21bb8152ee7d">More...</a><br /></td></tr>
<tr class="separator:a13c0b0c53e8b0dc4e08c21bb8152ee7d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac14e74c10b58f5518cd0e3e56067e5ba"><td class="memItemLeft" align="right" valign="top">anyarray&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#ac14e74c10b58f5518cd0e3e56067e5ba">array_abs</a> (anyarray x)</td></tr>
<tr class="memdesc:ac14e74c10b58f5518cd0e3e56067e5ba"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function takes an array as the input and finds absolute value of each element in the array, returning the resulting array. It requires that all the values are NON-NULL.  <a href="#ac14e74c10b58f5518cd0e3e56067e5ba">More...</a><br /></td></tr>
<tr class="separator:ac14e74c10b58f5518cd0e3e56067e5ba"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a407598f9eb70637798b02fd731bfca2c"><td class="memItemLeft" align="right" valign="top">float8&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a407598f9eb70637798b02fd731bfca2c">array_mean</a> (anyarray x)</td></tr>
<tr class="memdesc:a407598f9eb70637798b02fd731bfca2c"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function finds the mean of the values in the array. NULLs are ignored.  <a href="#a407598f9eb70637798b02fd731bfca2c">More...</a><br /></td></tr>
<tr class="separator:a407598f9eb70637798b02fd731bfca2c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a3b6c2d173a611e6d6b184d825c2b336d"><td class="memItemLeft" align="right" valign="top">float8&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a3b6c2d173a611e6d6b184d825c2b336d">array_stddev</a> (anyarray x)</td></tr>
<tr class="memdesc:a3b6c2d173a611e6d6b184d825c2b336d"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function finds the standard deviation of the values in the array. NULLs are ignored.  <a href="#a3b6c2d173a611e6d6b184d825c2b336d">More...</a><br /></td></tr>
<tr class="separator:a3b6c2d173a611e6d6b184d825c2b336d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ab066e65a41db78b00b4532996b2a6efc"><td class="memItemLeft" align="right" valign="top">float8 []&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#ab066e65a41db78b00b4532996b2a6efc">array_of_float</a> (integer k)</td></tr>
<tr class="memdesc:ab066e65a41db78b00b4532996b2a6efc"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function creates an array of set size (the argument value) of FLOAT8, initializing the values to 0.0;.  <a href="#ab066e65a41db78b00b4532996b2a6efc">More...</a><br /></td></tr>
<tr class="separator:ab066e65a41db78b00b4532996b2a6efc"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ab7d8550e66d2e0bd54b8f0997d93880c"><td class="memItemLeft" align="right" valign="top">bigint []&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#ab7d8550e66d2e0bd54b8f0997d93880c">array_of_bigint</a> (integer k)</td></tr>
<tr class="memdesc:ab7d8550e66d2e0bd54b8f0997d93880c"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function creates an array of set size (the argument value) of BIGINT, initializing the values to 0;.  <a href="#ab7d8550e66d2e0bd54b8f0997d93880c">More...</a><br /></td></tr>
<tr class="separator:ab7d8550e66d2e0bd54b8f0997d93880c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a065a5323f3b742be47e39ad8b4c90fc2"><td class="memItemLeft" align="right" valign="top">anyarray&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a065a5323f3b742be47e39ad8b4c90fc2">array_fill</a> (anyarray x, anyelement k)</td></tr>
<tr class="memdesc:a065a5323f3b742be47e39ad8b4c90fc2"><td class="mdescLeft">&#160;</td><td class="mdescRight">This functions set every values in the array to some desired value (provided as the argument).  <a href="#a065a5323f3b742be47e39ad8b4c90fc2">More...</a><br /></td></tr>
<tr class="separator:a065a5323f3b742be47e39ad8b4c90fc2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8855869bb9f124c3ff5b10041988610c"><td class="memItemLeft" align="right" valign="top">anyarray&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a8855869bb9f124c3ff5b10041988610c">array_cos</a> (anyarray x)</td></tr>
<tr class="memdesc:a8855869bb9f124c3ff5b10041988610c"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function takes an array as the input and apply cos function element-wise, returning the resulting array. It requires that all the values are NON-NULL. Return type is the same as the input type.  <a href="#a8855869bb9f124c3ff5b10041988610c">More...</a><br /></td></tr>
<tr class="separator:a8855869bb9f124c3ff5b10041988610c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae6881cc5c86941b6ffca35d7f3cd5c12"><td class="memItemLeft" align="right" valign="top">anyarray&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#ae6881cc5c86941b6ffca35d7f3cd5c12">array_scalar_mult</a> (anyarray x, anyelement k)</td></tr>
<tr class="memdesc:ae6881cc5c86941b6ffca35d7f3cd5c12"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function takes an array as the input and executes element-wise multiplication by the scalar provided as the second argument, returning the resulting array. It requires that all the values are NON-NULL. Return type is the same as the input type.  <a href="#ae6881cc5c86941b6ffca35d7f3cd5c12">More...</a><br /></td></tr>
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<tr class="memitem:a0b6ffe59b12c3dee076c3059f9ab363f"><td class="memItemLeft" align="right" valign="top">anyarray&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a0b6ffe59b12c3dee076c3059f9ab363f">array_scalar_add</a> (anyarray x, anyelement k)</td></tr>
<tr class="memdesc:a0b6ffe59b12c3dee076c3059f9ab363f"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function takes an array as the input and executes element-wise addition by the scalar provided as the second argument, returning the resulting array. It requires that all the values are NON-NULL. Return type is the same as the input type.  <a href="#a0b6ffe59b12c3dee076c3059f9ab363f">More...</a><br /></td></tr>
<tr class="separator:a0b6ffe59b12c3dee076c3059f9ab363f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:acc295a568878940ffc3e2c9a75990efb"><td class="memItemLeft" align="right" valign="top">anyarray&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#acc295a568878940ffc3e2c9a75990efb">array_filter</a> (anyarray x, anyelement k, text op)</td></tr>
<tr class="memdesc:acc295a568878940ffc3e2c9a75990efb"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function takes an array as the input and keep only elements that satisfy the operator on specified scalar. It requires that all the values are NON-NULL. Return type is the same as the input type.  <a href="#acc295a568878940ffc3e2c9a75990efb">More...</a><br /></td></tr>
<tr class="separator:acc295a568878940ffc3e2c9a75990efb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0c3c44e81ff158ce8914258aa5604872"><td class="memItemLeft" align="right" valign="top">anyarray&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a0c3c44e81ff158ce8914258aa5604872">array_filter</a> (anyarray x, anyelement k)</td></tr>
<tr class="memdesc:a0c3c44e81ff158ce8914258aa5604872"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function takes an array as the input and removes elements that equal to specified scalar. It requires that all the values are NON-NULL. Return type is the same as the input type.  <a href="#a0c3c44e81ff158ce8914258aa5604872">More...</a><br /></td></tr>
<tr class="separator:a0c3c44e81ff158ce8914258aa5604872"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac4490f150ecb7aaab0933c223ccde5bd"><td class="memItemLeft" align="right" valign="top">anyarray&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#ac4490f150ecb7aaab0933c223ccde5bd">array_filter</a> (anyarray x)</td></tr>
<tr class="memdesc:ac4490f150ecb7aaab0933c223ccde5bd"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function takes an array as the input and removes elements that equal to 0. It requires that all the values are NON-NULL. Return type is the same as the input type.  <a href="#ac4490f150ecb7aaab0933c223ccde5bd">More...</a><br /></td></tr>
<tr class="separator:ac4490f150ecb7aaab0933c223ccde5bd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a83451ed0c3ca5a9c62751dba47e45df7"><td class="memItemLeft" align="right" valign="top">float8 []&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a83451ed0c3ca5a9c62751dba47e45df7">array_sqrt</a> (anyarray x)</td></tr>
<tr class="memdesc:a83451ed0c3ca5a9c62751dba47e45df7"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function takes an array as the input and finds square root of each element in the array, returning the resulting array. It requires that all the values are NON-NULL.  <a href="#a83451ed0c3ca5a9c62751dba47e45df7">More...</a><br /></td></tr>
<tr class="separator:a83451ed0c3ca5a9c62751dba47e45df7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a761e7ca753a5e1acf26896b37ed8b0bd"><td class="memItemLeft" align="right" valign="top">anyarray&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a761e7ca753a5e1acf26896b37ed8b0bd">array_pow</a> (anyarray x, anyelement y)</td></tr>
<tr class="memdesc:a761e7ca753a5e1acf26896b37ed8b0bd"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function takes an array and a float8 as the input and finds power of each element in the array, returning the resulting array. It requires that all the values are NON-NULL.  <a href="#a761e7ca753a5e1acf26896b37ed8b0bd">More...</a><br /></td></tr>
<tr class="separator:a761e7ca753a5e1acf26896b37ed8b0bd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aff60f4091bed6374683f047c8a70ef9a"><td class="memItemLeft" align="right" valign="top">float8 []&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#aff60f4091bed6374683f047c8a70ef9a">array_square</a> (anyarray x)</td></tr>
<tr class="memdesc:aff60f4091bed6374683f047c8a70ef9a"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function takes an array as the input and finds square of each element in the array, returning the resulting array. It requires that all the values are NON-NULL.  <a href="#aff60f4091bed6374683f047c8a70ef9a">More...</a><br /></td></tr>
<tr class="separator:aff60f4091bed6374683f047c8a70ef9a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:acb57ea4521dcb717f9e3148e0acccc74"><td class="memItemLeft" align="right" valign="top">float8 []&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#acb57ea4521dcb717f9e3148e0acccc74">normalize</a> (anyarray x)</td></tr>
<tr class="memdesc:acb57ea4521dcb717f9e3148e0acccc74"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function normalizes an array as sum of squares to be 1.  <a href="#acb57ea4521dcb717f9e3148e0acccc74">More...</a><br /></td></tr>
<tr class="separator:acb57ea4521dcb717f9e3148e0acccc74"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a86e48d6f0ed7572cfc10576a07f84d25"><td class="memItemLeft" align="right" valign="top">boolean&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a86e48d6f0ed7572cfc10576a07f84d25">array_contains_null</a> (anyarray x)</td></tr>
<tr class="memdesc:a86e48d6f0ed7572cfc10576a07f84d25"><td class="mdescLeft">&#160;</td><td class="mdescRight">Function to check if array contains NULL.  <a href="#a86e48d6f0ed7572cfc10576a07f84d25">More...</a><br /></td></tr>
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<tr class="memitem:a819f395ada41a446dd4941f172d0bfef"><td class="memItemLeft" align="right" valign="top">anyarray&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a819f395ada41a446dd4941f172d0bfef">array_cum_sum</a> (anyarray x)</td></tr>
<tr class="memdesc:a819f395ada41a446dd4941f172d0bfef"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function takes an array as the input and computes the cumulative sum with the first element being the same. It requires that all the values are NON-NULL.  <a href="#a819f395ada41a446dd4941f172d0bfef">More...</a><br /></td></tr>
<tr class="separator:a819f395ada41a446dd4941f172d0bfef"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a69642cec81403897436d3c286bf2b36b"><td class="memItemLeft" align="right" valign="top">anyarray&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#a69642cec81403897436d3c286bf2b36b">array_cum_prod</a> (anyarray x)</td></tr>
<tr class="memdesc:a69642cec81403897436d3c286bf2b36b"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function takes an array as the input and computes the cumulative product with the first element being the same. It requires that all the values are NON-NULL.  <a href="#a69642cec81403897436d3c286bf2b36b">More...</a><br /></td></tr>
<tr class="separator:a69642cec81403897436d3c286bf2b36b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af057b589f2a2cb1095caa99feaeb3d70"><td class="memItemLeft" align="right" valign="top">set&lt; record &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#af057b589f2a2cb1095caa99feaeb3d70">array_unnest_2d_to_1d</a> (anyarray x, int unnest_row_id, anyarray unnest_result)</td></tr>
<tr class="memdesc:af057b589f2a2cb1095caa99feaeb3d70"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function takes a 2-D array as the input and unnests it by one level. It returns a set of 1-D arrays that correspond to rows of the input array as well as an ID column containing row positions occupied by those 1-D arrays within the 2-D array (the ID column values start with 1 and not 0)  <a href="#af057b589f2a2cb1095caa99feaeb3d70">More...</a><br /></td></tr>
<tr class="separator:af057b589f2a2cb1095caa99feaeb3d70"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa86efceb2ac80f621db00844bab77553"><td class="memItemLeft" align="right" valign="top">text&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="array__ops_8sql__in.html#aa86efceb2ac80f621db00844bab77553">array_unnest_2d_to_1d</a> ()</td></tr>
<tr class="separator:aa86efceb2ac80f621db00844bab77553"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><dl class="section date"><dt>Date</dt><dd>April 2011 </dd></dl>
</div><h2 class="groupheader">Function Documentation</h2>
<a id="ac14e74c10b58f5518cd0e3e56067e5ba"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac14e74c10b58f5518cd0e3e56067e5ba">&#9670;&nbsp;</a></span>array_abs()</h2>

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          <td class="memname">anyarray array_abs </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Absolute value of all elements of x. </dd></dl>

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<a id="a13c0b0c53e8b0dc4e08c21bb8152ee7d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a13c0b0c53e8b0dc4e08c21bb8152ee7d">&#9670;&nbsp;</a></span>array_abs_sum()</h2>

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          <td class="memname">anyelement array_abs_sum </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Sum of absolute value of x </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a91c8d3715142927b3967f05a4fbf1575">&#9670;&nbsp;</a></span>array_add()</h2>

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          <td class="memname">anyarray array_add </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>y</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
    <tr><td class="paramname">y</td><td>Array y </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Sum of x and y. </dd></dl>

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<a id="aedf6cb13eb4803bcc12dc4d95ea8ff4e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aedf6cb13eb4803bcc12dc4d95ea8ff4e">&#9670;&nbsp;</a></span>array_contains()</h2>

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          <td class="memname">bool array_contains </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>y</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
    <tr><td class="paramname">y</td><td>Array y </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns true if x contains y. </dd></dl>

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<a id="a86e48d6f0ed7572cfc10576a07f84d25"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a86e48d6f0ed7572cfc10576a07f84d25">&#9670;&nbsp;</a></span>array_contains_null()</h2>

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          <td class="memname">boolean array_contains_null </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>True if x has NULL value else False. </dd></dl>

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</div>
<a id="a8855869bb9f124c3ff5b10041988610c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8855869bb9f124c3ff5b10041988610c">&#9670;&nbsp;</a></span>array_cos()</h2>

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          <td class="memname">anyarray array_cos </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Array with each element of cos(x). </dd></dl>

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<a id="a69642cec81403897436d3c286bf2b36b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a69642cec81403897436d3c286bf2b36b">&#9670;&nbsp;</a></span>array_cum_prod()</h2>

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          <td class="memname">anyarray array_cum_prod </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Cumulative product of the elements in x. </dd></dl>

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<a id="a819f395ada41a446dd4941f172d0bfef"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a819f395ada41a446dd4941f172d0bfef">&#9670;&nbsp;</a></span>array_cum_sum()</h2>

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          <td class="memname">anyarray array_cum_sum </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Cumulative sum of the elements in x. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a6cc05e7052495f8b64692faf40219576">&#9670;&nbsp;</a></span>array_div()</h2>

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          <td class="memname">anyarray array_div </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>y</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
    <tr><td class="paramname">y</td><td>Array y </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Element-wise division of x and y. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#acde10964ed23b7c8da515fb84cb8d5e0">&#9670;&nbsp;</a></span>array_dot()</h2>

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          <td class="memname">float8 array_dot </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>y</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
    <tr><td class="paramname">y</td><td>Array y </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Dot-product of x and y. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a065a5323f3b742be47e39ad8b4c90fc2">&#9670;&nbsp;</a></span>array_fill()</h2>

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          <td class="memname">anyarray array_fill </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">anyelement&#160;</td>
          <td class="paramname"><em>k</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
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<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Some array </td></tr>
    <tr><td class="paramname">k</td><td>Desired value </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Fills array with desired value. </dd></dl>

</div>
</div>
<a id="acc295a568878940ffc3e2c9a75990efb"></a>
<h2 class="memtitle"><span class="permalink"><a href="#acc295a568878940ffc3e2c9a75990efb">&#9670;&nbsp;</a></span>array_filter() <span class="overload">[1/3]</span></h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">anyarray array_filter </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">anyelement&#160;</td>
          <td class="paramname"><em>k</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">text&#160;</td>
          <td class="paramname"><em>op</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
    <tr><td class="paramname">k</td><td>Scalar </td></tr>
    <tr><td class="paramname">op</td><td>Operator </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Filtered array. </dd></dl>

</div>
</div>
<a id="a0c3c44e81ff158ce8914258aa5604872"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a0c3c44e81ff158ce8914258aa5604872">&#9670;&nbsp;</a></span>array_filter() <span class="overload">[2/3]</span></h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">anyarray array_filter </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">anyelement&#160;</td>
          <td class="paramname"><em>k</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
    <tr><td class="paramname">k</td><td>Scalar </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Filtered array. </dd></dl>

</div>
</div>
<a id="ac4490f150ecb7aaab0933c223ccde5bd"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac4490f150ecb7aaab0933c223ccde5bd">&#9670;&nbsp;</a></span>array_filter() <span class="overload">[3/3]</span></h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">anyarray array_filter </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Filtered array. </dd></dl>

</div>
</div>
<a id="ae891429cc50705c530f3e5ca15541849"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae891429cc50705c530f3e5ca15541849">&#9670;&nbsp;</a></span>array_max()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">anyelement array_max </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Max of x. </dd></dl>

</div>
</div>
<a id="aa415256a9064aecc600dfb5e377fb7b1"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aa415256a9064aecc600dfb5e377fb7b1">&#9670;&nbsp;</a></span>array_max_index()</h2>

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          <td class="memname">float8 [] array_max_index </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Array as [max, index]. </dd></dl>

</div>
</div>
<a id="a407598f9eb70637798b02fd731bfca2c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a407598f9eb70637798b02fd731bfca2c">&#9670;&nbsp;</a></span>array_mean()</h2>

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      <table class="memname">
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          <td class="memname">float8 array_mean </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Mean of x. </dd></dl>

</div>
</div>
<a id="a6659bf9d9363eb179fab34f81f8ac59b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a6659bf9d9363eb179fab34f81f8ac59b">&#9670;&nbsp;</a></span>array_min()</h2>

<div class="memitem">
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      <table class="memname">
        <tr>
          <td class="memname">anyelement array_min </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Min of x. </dd></dl>

</div>
</div>
<a id="a813a4d9ffc1c18b1b3e18f6ecdb2051f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a813a4d9ffc1c18b1b3e18f6ecdb2051f">&#9670;&nbsp;</a></span>array_min_index()</h2>

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      <table class="memname">
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          <td class="memname">float8 [] array_min_index </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Array as [min, index]. </dd></dl>

</div>
</div>
<a id="a652d70c480d484c4a1a92ded384b0dd7"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a652d70c480d484c4a1a92ded384b0dd7">&#9670;&nbsp;</a></span>array_mult()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">anyarray array_mult </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>y</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
    <tr><td class="paramname">y</td><td>Array y </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Element-wise product of x and y. </dd></dl>

</div>
</div>
<a id="ab7d8550e66d2e0bd54b8f0997d93880c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ab7d8550e66d2e0bd54b8f0997d93880c">&#9670;&nbsp;</a></span>array_of_bigint()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">bigint [] array_of_bigint </td>
          <td>(</td>
          <td class="paramtype">integer&#160;</td>
          <td class="paramname"><em>k</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">k</td><td>Array size. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Array of size k. </dd></dl>

</div>
</div>
<a id="ab066e65a41db78b00b4532996b2a6efc"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ab066e65a41db78b00b4532996b2a6efc">&#9670;&nbsp;</a></span>array_of_float()</h2>

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      <table class="memname">
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          <td class="memname">float8 [] array_of_float </td>
          <td>(</td>
          <td class="paramtype">integer&#160;</td>
          <td class="paramname"><em>k</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">k</td><td>Array size </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Array of size k. </dd></dl>

</div>
</div>
<a id="a761e7ca753a5e1acf26896b37ed8b0bd"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a761e7ca753a5e1acf26896b37ed8b0bd">&#9670;&nbsp;</a></span>array_pow()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">anyarray array_pow </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">anyelement&#160;</td>
          <td class="paramname"><em>y</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
    <tr><td class="paramname">y</td><td>Desired power </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Power of y for all elements of x. </dd></dl>

</div>
</div>
<a id="a0b6ffe59b12c3dee076c3059f9ab363f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a0b6ffe59b12c3dee076c3059f9ab363f">&#9670;&nbsp;</a></span>array_scalar_add()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">anyarray array_scalar_add </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">anyelement&#160;</td>
          <td class="paramname"><em>k</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
    <tr><td class="paramname">k</td><td>Scalar </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Array with each element of x added by scalar. </dd></dl>

</div>
</div>
<a id="ae6881cc5c86941b6ffca35d7f3cd5c12"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae6881cc5c86941b6ffca35d7f3cd5c12">&#9670;&nbsp;</a></span>array_scalar_mult()</h2>

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<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">anyarray array_scalar_mult </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">anyelement&#160;</td>
          <td class="paramname"><em>k</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
    <tr><td class="paramname">k</td><td>Scalar </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Array with each element of x multiplied by scalar. </dd></dl>

</div>
</div>
<a id="a83451ed0c3ca5a9c62751dba47e45df7"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a83451ed0c3ca5a9c62751dba47e45df7">&#9670;&nbsp;</a></span>array_sqrt()</h2>

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        <tr>
          <td class="memname">float8 [] array_sqrt </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Square root of all elements of x. </dd></dl>

</div>
</div>
<a id="aff60f4091bed6374683f047c8a70ef9a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aff60f4091bed6374683f047c8a70ef9a">&#9670;&nbsp;</a></span>array_square()</h2>

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        <tr>
          <td class="memname">float8 [] array_square </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Square of all elements of x. </dd></dl>

</div>
</div>
<a id="a3b6c2d173a611e6d6b184d825c2b336d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a3b6c2d173a611e6d6b184d825c2b336d">&#9670;&nbsp;</a></span>array_stddev()</h2>

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      <table class="memname">
        <tr>
          <td class="memname">float8 array_stddev </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Standard deviation of x. </dd></dl>

</div>
</div>
<a id="a2875a161a01c7dcdea9a4997b074eefc"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a2875a161a01c7dcdea9a4997b074eefc">&#9670;&nbsp;</a></span>array_sub()</h2>

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      <table class="memname">
        <tr>
          <td class="memname">anyarray array_sub </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>y</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
    <tr><td class="paramname">y</td><td>Array y </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>x-y. </dd></dl>

</div>
</div>
<a id="a4c98f20e6a737358806f63318daea5ec"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a4c98f20e6a737358806f63318daea5ec">&#9670;&nbsp;</a></span>array_sum()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">anyelement array_sum </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Sum of x. </dd></dl>

</div>
</div>
<a id="a418de59800833aa95f9b7cbd6b12901c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a418de59800833aa95f9b7cbd6b12901c">&#9670;&nbsp;</a></span>array_sum_big()</h2>

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      <table class="memname">
        <tr>
          <td class="memname">float8 array_sum_big </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Sum of x. </dd></dl>

</div>
</div>
<a id="af057b589f2a2cb1095caa99feaeb3d70"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af057b589f2a2cb1095caa99feaeb3d70">&#9670;&nbsp;</a></span>array_unnest_2d_to_1d() <span class="overload">[1/2]</span></h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">set&lt;record&gt; array_unnest_2d_to_1d </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int&#160;</td>
          <td class="paramname"><em>unnest_row_id</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>unnest_result</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Set of 1-D arrays that corrspond to rows of x and an ID column. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#aa86efceb2ac80f621db00844bab77553">&#9670;&nbsp;</a></span>array_unnest_2d_to_1d() <span class="overload">[2/2]</span></h2>

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          <td class="memname">text array_unnest_2d_to_1d </td>
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<h2 class="memtitle"><span class="permalink"><a href="#acb57ea4521dcb717f9e3148e0acccc74">&#9670;&nbsp;</a></span>normalize()</h2>

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          <td class="memname">float8 [] normalize </td>
          <td>(</td>
          <td class="paramtype">anyarray&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
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<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Array normalized by its 2-norm. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a26e8508a2bae10a6574cec697a270eea">&#9670;&nbsp;</a></span>sum()</h2>

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          <td class="memname">aggregate anyarray sum </td>
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<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Array x </td></tr>
    <tr><td class="paramname">y</td><td>Array y </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Sum of x and y. </dd></dl>

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