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| <div class="headertitle"><div class="title">schema.h</div></div> |
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| <a href="schema_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div> |
| <div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one</span></div> |
| <div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * or more contributor license agreements. See the NOTICE file</span></div> |
| <div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * distributed with this work for additional information</span></div> |
| <div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * regarding copyright ownership. The ASF licenses this file</span></div> |
| <div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * to you under the Apache License, Version 2.0 (the</span></div> |
| <div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * "License"); you may not use this file except in compliance</span></div> |
| <div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> * with the License. You may obtain a copy of the License at</span></div> |
| <div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> *</span></div> |
| <div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> *</span></div> |
| <div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> * Unless required by applicable law or agreed to in writing,</span></div> |
| <div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> * software distributed under the License is distributed on an</span></div> |
| <div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div> |
| <div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> * KIND, either express or implied. See the License for the</span></div> |
| <div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> * specific language governing permissions and limitations</span></div> |
| <div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment"> * under the License.</span></div> |
| <div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment"> */</span></div> |
| <div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div> |
| <div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#pragma once</span></div> |
| <div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> </div> |
| <div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> </div> |
| <div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include <cstdint></span></div> |
| <div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include <optional></span></div> |
| <div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include <string></span></div> |
| <div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="preprocessor">#include <unordered_map></span></div> |
| <div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#include <unordered_set></span></div> |
| <div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="preprocessor">#include <vector></span></div> |
| <div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> </div> |
| <div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="preprocessor">#include "iceberg/iceberg_export.h"</span></div> |
| <div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="preprocessor">#include "iceberg/result.h"</span></div> |
| <div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="preprocessor">#include "<a class="code" href="schema__field_8h.html">iceberg/schema_field.h</a>"</span></div> |
| <div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="preprocessor">#include "<a class="code" href="type_8h.html">iceberg/type.h</a>"</span></div> |
| <div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="preprocessor">#include "<a class="code" href="lazy_8h.html">iceberg/util/lazy.h</a>"</span></div> |
| <div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="preprocessor">#include "iceberg/util/string_util.h"</span></div> |
| <div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> </div> |
| <div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="keyword">namespace </span>iceberg {</div> |
| <div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> </div> |
| <div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span><span class="keyword">class </span>SchemaCache;</div> |
| <div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> </div> |
| <div class="foldopen" id="foldopen00049" data-start="{" data-end="};"> |
| <div class="line"><a id="l00049" name="l00049"></a><span class="lineno"><a class="line" href="classiceberg_1_1Schema.html"> 49</a></span><span class="keyword">class </span>ICEBERG_EXPORT <a class="code hl_class" href="classiceberg_1_1Schema.html">Schema</a> : <span class="keyword">public</span> <a class="code hl_class" href="classiceberg_1_1StructType.html">StructType</a> {</div> |
| <div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">public</span>:</div> |
| <div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keyword">static</span> <span class="keyword">constexpr</span> int32_t kInitialSchemaId = 0;</div> |
| <div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keyword">static</span> <span class="keyword">constexpr</span> int32_t kInitialColumnId = 0;</div> |
| <div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="keyword">static</span> <span class="keyword">constexpr</span> int32_t kInvalidColumnId = -1;</div> |
| <div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> </div> |
| <div class="line"><a id="l00056" name="l00056"></a><span class="lineno"><a class="line" href="classiceberg_1_1Schema.html#a5990379e54feaca6629e832dfc052de5"> 56</a></span> <span class="keyword">static</span> <span class="keyword">constexpr</span> std::string_view kAllColumns = <span class="stringliteral">"*"</span>;</div> |
| <div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> </div> |
| <div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="keyword">explicit</span> <a class="code hl_class" href="classiceberg_1_1Schema.html">Schema</a>(std::vector<SchemaField> fields, int32_t schema_id = kInitialSchemaId);</div> |
| <div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> </div> |
| <div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keyword">static</span> Result<std::unique_ptr<Schema>> Make(std::vector<SchemaField> fields,</div> |
| <div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> int32_t schema_id,</div> |
| <div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> std::vector<int32_t> identifier_field_ids);</div> |
| <div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> </div> |
| <div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <span class="keyword">static</span> Result<std::unique_ptr<Schema>> Make(</div> |
| <div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> std::vector<SchemaField> fields, int32_t schema_id,</div> |
| <div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="keyword">const</span> std::vector<std::string>& identifier_field_names);</div> |
| <div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> </div> |
| <div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="keyword">static</span> Status ValidateIdentifierFields(</div> |
| <div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> int32_t field_id, <span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1Schema.html">Schema</a>& schema,</div> |
| <div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keyword">const</span> std::unordered_map<int32_t, int32_t>& id_to_parent);</div> |
| <div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> </div> |
| <div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="keyword">static</span> <span class="keyword">const</span> std::shared_ptr<Schema>& EmptySchema();</div> |
| <div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> </div> |
| <div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> int32_t schema_id() <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> </div> |
| <div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> std::string ToString() <span class="keyword">const override</span>;</div> |
| <div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> </div> |
| <div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> Result<std::optional<std::reference_wrapper<const SchemaField>>> FindFieldByName(</div> |
| <div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> std::string_view name, <span class="keywordtype">bool</span> case_sensitive = <span class="keyword">true</span>) <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> </div> |
| <div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> Result<std::optional<std::reference_wrapper<const SchemaField>>> FindFieldById(</div> |
| <div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> int32_t field_id) <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> </div> |
| <div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> Result<std::optional<std::string_view>> FindColumnNameById(int32_t field_id) <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> </div> |
| <div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> Result<std::unique_ptr<StructLikeAccessor>> GetAccessorById(int32_t field_id) <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> </div> |
| <div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> Result<std::unique_ptr<Schema>> Select(std::span<const std::string> names,</div> |
| <div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> <span class="keywordtype">bool</span> case_sensitive = <span class="keyword">true</span>) <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> </div> |
| <div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> Result<std::unique_ptr<Schema>> Project(</div> |
| <div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <span class="keyword">const</span> std::unordered_set<int32_t>& field_ids) <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> </div> |
| <div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> <span class="keyword">const</span> std::vector<int32_t>& IdentifierFieldIds() <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> </div> |
| <div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> Result<std::vector<std::string>> IdentifierFieldNames() <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> </div> |
| <div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> Result<int32_t> HighestFieldId() <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> </div> |
| <div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keywordtype">bool</span> SameSchema(<span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1Schema.html">Schema</a>& other) <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> </div> |
| <div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> Status Validate(int32_t format_version) <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> </div> |
| <div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> <span class="keyword">friend</span> <span class="keywordtype">bool</span> operator==(<span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1Schema.html">Schema</a>& lhs, <span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1Schema.html">Schema</a>& rhs) { <span class="keywordflow">return</span> lhs.Equals(rhs); }</div> |
| <div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> </div> |
| <div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> <span class="keyword">private</span>:</div> |
| <div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> <span class="keywordtype">bool</span> Equals(<span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1Schema.html">Schema</a>& other) <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> </div> |
| <div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> <span class="keyword">const</span> int32_t schema_id_;</div> |
| <div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="comment">// Field IDs that uniquely identify rows in the table.</span></div> |
| <div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> std::vector<int32_t> identifier_field_ids_;</div> |
| <div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> <span class="comment">// Cache for schema mappings to facilitate fast lookups.</span></div> |
| <div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> std::unique_ptr<SchemaCache> cache_;</div> |
| <div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span>};</div> |
| </div> |
| <div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> </div> |
| <div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span><span class="comment">// Cache for schema mappings to facilitate fast lookups.</span></div> |
| <div class="foldopen" id="foldopen00201" data-start="{" data-end="};"> |
| <div class="line"><a id="l00201" name="l00201"></a><span class="lineno"><a class="line" href="classiceberg_1_1SchemaCache.html"> 201</a></span><span class="keyword">class </span>ICEBERG_EXPORT <a class="code hl_class" href="classiceberg_1_1SchemaCache.html">SchemaCache</a> {</div> |
| <div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> <span class="keyword">public</span>:</div> |
| <div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> <span class="keyword">explicit</span> <a class="code hl_class" href="classiceberg_1_1SchemaCache.html">SchemaCache</a>(<span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1Schema.html">Schema</a>* schema) : schema_(schema) {}</div> |
| <div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> </div> |
| <div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> <span class="keyword">using </span>IdToFieldMap =</div> |
| <div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> std::unordered_map<int32_t, std::reference_wrapper<const SchemaField>>;</div> |
| <div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> <span class="keyword">using </span>IdToFieldMapRef = std::reference_wrapper<const IdToFieldMap>;</div> |
| <div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> </div> |
| <div class="foldopen" id="foldopen00209" data-start="{" data-end="};"> |
| <div class="line"><a id="l00209" name="l00209"></a><span class="lineno"><a class="line" href="structiceberg_1_1SchemaCache_1_1NameIdMap.html"> 209</a></span> <span class="keyword">struct </span><a class="code hl_struct" href="structiceberg_1_1SchemaCache_1_1NameIdMap.html">NameIdMap</a> {</div> |
| <div class="line"><a id="l00215" name="l00215"></a><span class="lineno"><a class="line" href="structiceberg_1_1SchemaCache_1_1NameIdMap.html#af71af6edc4a973bc0364d02a95cd2b59"> 215</a></span> std::unordered_map<std::string, int32_t, StringHash, std::equal_to<>> <a class="code hl_variable" href="structiceberg_1_1SchemaCache_1_1NameIdMap.html#af71af6edc4a973bc0364d02a95cd2b59">name_to_id</a>;</div> |
| <div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> </div> |
| <div class="line"><a id="l00221" name="l00221"></a><span class="lineno"><a class="line" href="structiceberg_1_1SchemaCache_1_1NameIdMap.html#a1017b5cbf92346f004683685e8477624"> 221</a></span> std::unordered_map<int32_t, std::string> <a class="code hl_variable" href="structiceberg_1_1SchemaCache_1_1NameIdMap.html#a1017b5cbf92346f004683685e8477624">id_to_name</a>;</div> |
| <div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> };</div> |
| </div> |
| <div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> <span class="keyword">using </span>NameIdMapRef = std::reference_wrapper<const NameIdMap>;</div> |
| <div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> </div> |
| <div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> <span class="keyword">using </span>LowercaseNameToIdMap =</div> |
| <div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> std::unordered_map<std::string, int32_t, StringHash, std::equal_to<>>;</div> |
| <div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> <span class="keyword">using </span>LowercaseNameToIdMapRef = std::reference_wrapper<const LowercaseNameToIdMap>;</div> |
| <div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> </div> |
| <div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> <span class="keyword">using </span>IdToPositionPathMap = std::unordered_map<int32_t, std::vector<size_t>>;</div> |
| <div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> <span class="keyword">using </span>IdToPositionPathMapRef = std::reference_wrapper<const IdToPositionPathMap>;</div> |
| <div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> </div> |
| <div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> Result<IdToFieldMapRef> GetIdToFieldMap() <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> Result<NameIdMapRef> GetNameIdMap() <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> Result<LowercaseNameToIdMapRef> GetLowercaseNameToIdMap() <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> Result<IdToPositionPathMapRef> GetIdToPositionPathMap() <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> Result<int32_t> GetHighestFieldId() <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> </div> |
| <div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> <span class="keyword">private</span>:</div> |
| <div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> <span class="keyword">static</span> Result<IdToFieldMap> InitIdToFieldMap(<span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1Schema.html">Schema</a>* schema);</div> |
| <div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> <span class="keyword">static</span> Result<NameIdMap> InitNameIdMap(<span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1Schema.html">Schema</a>* schema);</div> |
| <div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> <span class="keyword">static</span> Result<LowercaseNameToIdMap> InitLowerCaseNameToIdMap(<span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1Schema.html">Schema</a>* schema);</div> |
| <div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> <span class="keyword">static</span> Result<IdToPositionPathMap> InitIdToPositionPath(<span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1Schema.html">Schema</a>* schema);</div> |
| <div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> <span class="keyword">static</span> Result<int32_t> InitHighestFieldId(<span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1Schema.html">Schema</a>* schema);</div> |
| <div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> </div> |
| <div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> <span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1Schema.html">Schema</a>* schema_;</div> |
| <div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> <span class="comment">// Mapping from field id to field.</span></div> |
| <div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> <a class="code hl_class" href="classiceberg_1_1Lazy.html">Lazy<InitIdToFieldMap></a> id_to_field_;</div> |
| <div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> <span class="comment">// Mapping from field name to field id.</span></div> |
| <div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> <a class="code hl_class" href="classiceberg_1_1Lazy.html">Lazy<InitNameIdMap></a> name_id_map_;</div> |
| <div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> <span class="comment">// Mapping from lowercased field name to field id.</span></div> |
| <div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> <a class="code hl_class" href="classiceberg_1_1Lazy.html">Lazy<InitLowerCaseNameToIdMap></a> lowercase_name_to_id_;</div> |
| <div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> <span class="comment">// Mapping from field id to (nested) position path to access the field.</span></div> |
| <div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> <a class="code hl_class" href="classiceberg_1_1Lazy.html">Lazy<InitIdToPositionPath></a> id_to_position_path_;</div> |
| <div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> <span class="comment">// Highest field ID in the schema.</span></div> |
| <div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> <a class="code hl_class" href="classiceberg_1_1Lazy.html">Lazy<InitHighestFieldId></a> highest_field_id_;</div> |
| <div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span>};</div> |
| </div> |
| <div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> </div> |
| <div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span>} <span class="comment">// namespace iceberg</span></div> |
| <div class="ttc" id="aclassiceberg_1_1Lazy_html"><div class="ttname"><a href="classiceberg_1_1Lazy.html">iceberg::Lazy</a></div><div class="ttdef"><b>Definition</b> lazy.h:35</div></div> |
| <div class="ttc" id="aclassiceberg_1_1SchemaCache_html"><div class="ttname"><a href="classiceberg_1_1SchemaCache.html">iceberg::SchemaCache</a></div><div class="ttdef"><b>Definition</b> schema.h:201</div></div> |
| <div class="ttc" id="aclassiceberg_1_1Schema_html"><div class="ttname"><a href="classiceberg_1_1Schema.html">iceberg::Schema</a></div><div class="ttdoc">A schema for a Table.</div><div class="ttdef"><b>Definition</b> schema.h:49</div></div> |
| <div class="ttc" id="aclassiceberg_1_1StructType_html"><div class="ttname"><a href="classiceberg_1_1StructType.html">iceberg::StructType</a></div><div class="ttdoc">A data type representing a struct with nested fields.</div><div class="ttdef"><b>Definition</b> type.h:108</div></div> |
| <div class="ttc" id="alazy_8h_html"><div class="ttname"><a href="lazy_8h.html">lazy.h</a></div></div> |
| <div class="ttc" id="aschema__field_8h_html"><div class="ttname"><a href="schema__field_8h.html">schema_field.h</a></div></div> |
| <div class="ttc" id="astructiceberg_1_1SchemaCache_1_1NameIdMap_html"><div class="ttname"><a href="structiceberg_1_1SchemaCache_1_1NameIdMap.html">iceberg::SchemaCache::NameIdMap</a></div><div class="ttdef"><b>Definition</b> schema.h:209</div></div> |
| <div class="ttc" id="astructiceberg_1_1SchemaCache_1_1NameIdMap_html_a1017b5cbf92346f004683685e8477624"><div class="ttname"><a href="structiceberg_1_1SchemaCache_1_1NameIdMap.html#a1017b5cbf92346f004683685e8477624">iceberg::SchemaCache::NameIdMap::id_to_name</a></div><div class="ttdeci">std::unordered_map< int32_t, std::string > id_to_name</div><div class="ttdoc">Mapping from field ID to canonical name.</div><div class="ttdef"><b>Definition</b> schema.h:221</div></div> |
| <div class="ttc" id="astructiceberg_1_1SchemaCache_1_1NameIdMap_html_af71af6edc4a973bc0364d02a95cd2b59"><div class="ttname"><a href="structiceberg_1_1SchemaCache_1_1NameIdMap.html#af71af6edc4a973bc0364d02a95cd2b59">iceberg::SchemaCache::NameIdMap::name_to_id</a></div><div class="ttdeci">std::unordered_map< std::string, int32_t, StringHash, std::equal_to<> > name_to_id</div><div class="ttdoc">Mapping from canonical field name to ID.</div><div class="ttdef"><b>Definition</b> schema.h:215</div></div> |
| <div class="ttc" id="atype_8h_html"><div class="ttname"><a href="type_8h.html">type.h</a></div></div> |
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