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| <p><code>#include <<a class="el" href="descriptors_8h_source.html">descriptors.h</a>></code></p> |
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| <tr class="memitem:a0221f9e115a9a0dfa53c5251f37b36d1"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="structimpala_1_1NullIndicatorOffset.html#a0221f9e115a9a0dfa53c5251f37b36d1">NullIndicatorOffset</a> (int <a class="el" href="structimpala_1_1NullIndicatorOffset.html#a10582aa1ee75cf346dd1974af5521e18">byte_offset</a>, int bit_offset)</td></tr> |
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| <tr class="memitem:a2f86fc2eabcecc2dd7c0f621ea77d411"><td class="memItemLeft" align="right" valign="top">std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="structimpala_1_1NullIndicatorOffset.html#a2f86fc2eabcecc2dd7c0f621ea77d411">DebugString</a> () const </td></tr> |
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| Public Attributes</h2></td></tr> |
| <tr class="memitem:a10582aa1ee75cf346dd1974af5521e18"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structimpala_1_1NullIndicatorOffset.html#a10582aa1ee75cf346dd1974af5521e18">byte_offset</a></td></tr> |
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| <tr class="memitem:a1cb60679751a84789c275f27547a9bbd"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structimpala_1_1NullIndicatorOffset.html#a1cb60679751a84789c275f27547a9bbd">bit_mask</a></td></tr> |
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| <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> |
| <div class="textblock"><p>Location information for null indicator bit for particular slot. For non-nullable slots, the byte_offset will be 0 and the bit_mask will be 0. This allows us to do the <a class="el" href="structimpala_1_1NullIndicatorOffset.html">NullIndicatorOffset</a> operations (tuple + byte_offset &/| bit_mask) regardless of whether the slot is nullable or not. This is more efficient than branching to check if the slot is non-nullable. </p> |
| |
| <p>Definition at line <a class="el" href="descriptors_8h_source.html#l00061">61</a> of file <a class="el" href="descriptors_8h_source.html">descriptors.h</a>.</p> |
| </div><h2 class="groupheader">Constructor & Destructor Documentation</h2> |
| <a class="anchor" id="a0221f9e115a9a0dfa53c5251f37b36d1"></a> |
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| <td class="memname">impala::NullIndicatorOffset::NullIndicatorOffset </td> |
| <td>(</td> |
| <td class="paramtype">int </td> |
| <td class="paramname"><em>byte_offset</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">int </td> |
| <td class="paramname"><em>bit_offset</em> </td> |
| </tr> |
| <tr> |
| <td></td> |
| <td>)</td> |
| <td></td><td></td> |
| </tr> |
| </table> |
| </td> |
| <td class="mlabels-right"> |
| <span class="mlabels"><span class="mlabel">inline</span></span> </td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Definition at line <a class="el" href="descriptors_8h_source.html#l00065">65</a> of file <a class="el" href="descriptors_8h_source.html">descriptors.h</a>.</p> |
| |
| </div> |
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| <h2 class="groupheader">Member Function Documentation</h2> |
| <a class="anchor" id="a2f86fc2eabcecc2dd7c0f621ea77d411"></a> |
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| <tr> |
| <td class="memname">string impala::NullIndicatorOffset::DebugString </td> |
| <td>(</td> |
| <td class="paramname"></td><td>)</td> |
| <td> const</td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Definition at line <a class="el" href="descriptors_8cc_source.html#l00038">38</a> of file <a class="el" href="descriptors_8cc_source.html">descriptors.cc</a>.</p> |
| |
| <p>Referenced by <a class="el" href="descriptors_8cc_source.html#l00075">impala::SlotDescriptor::DebugString()</a>, and <a class="el" href="descriptors_8cc_source.html#l00045">impala::operator<<()</a>.</p> |
| |
| </div> |
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| <h2 class="groupheader">Member Data Documentation</h2> |
| <a class="anchor" id="a1cb60679751a84789c275f27547a9bbd"></a> |
| <div class="memitem"> |
| <div class="memproto"> |
| <table class="memname"> |
| <tr> |
| <td class="memname">uint8_t impala::NullIndicatorOffset::bit_mask</td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Definition at line <a class="el" href="descriptors_8h_source.html#l00063">63</a> of file <a class="el" href="descriptors_8h_source.html">descriptors.h</a>.</p> |
| |
| <p>Referenced by <a class="el" href="descriptors_8cc_source.html#l00476">impala::SlotDescriptor::CodegenIsNull()</a>, <a class="el" href="descriptors_8cc_source.html#l00510">impala::SlotDescriptor::CodegenUpdateNull()</a>, <a class="el" href="slot-ref_8cc_source.html#l00155">impala::SlotRef::GetCodegendComputeFn()</a>, <a class="el" href="descriptors_8h_source.html#l00093">impala::SlotDescriptor::is_nullable()</a>, <a class="el" href="tuple_8h_source.html#l00112">impala::Tuple::IsNull()</a>, <a class="el" href="tuple_8h_source.html#l00107">impala::Tuple::SetNotNull()</a>, and <a class="el" href="tuple_8h_source.html#l00101">impala::Tuple::SetNull()</a>.</p> |
| |
| </div> |
| </div> |
| <a class="anchor" id="a10582aa1ee75cf346dd1974af5521e18"></a> |
| <div class="memitem"> |
| <div class="memproto"> |
| <table class="memname"> |
| <tr> |
| <td class="memname">int impala::NullIndicatorOffset::byte_offset</td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Definition at line <a class="el" href="descriptors_8h_source.html#l00062">62</a> of file <a class="el" href="descriptors_8h_source.html">descriptors.h</a>.</p> |
| |
| <p>Referenced by <a class="el" href="descriptors_8cc_source.html#l00476">impala::SlotDescriptor::CodegenIsNull()</a>, <a class="el" href="descriptors_8cc_source.html#l00510">impala::SlotDescriptor::CodegenUpdateNull()</a>, <a class="el" href="slot-ref_8cc_source.html#l00155">impala::SlotRef::GetCodegendComputeFn()</a>, <a class="el" href="tuple_8h_source.html#l00112">impala::Tuple::IsNull()</a>, <a class="el" href="tuple_8h_source.html#l00107">impala::Tuple::SetNotNull()</a>, and <a class="el" href="tuple_8h_source.html#l00101">impala::Tuple::SetNull()</a>.</p> |
| |
| </div> |
| </div> |
| <hr/>The documentation for this struct was generated from the following files:<ul> |
| <li>be/src/runtime/<a class="el" href="descriptors_8h_source.html">descriptors.h</a></li> |
| <li>be/src/runtime/<a class="el" href="descriptors_8cc_source.html">descriptors.cc</a></li> |
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