add docs for c++ tools and core API.
Project: http://git-wip-us.apache.org/repos/asf/orc/repo Commit: http://git-wip-us.apache.org/repos/asf/orc/commit/c63412b1 Tree: http://git-wip-us.apache.org/repos/asf/orc/tree/c63412b1 Diff: http://git-wip-us.apache.org/repos/asf/orc/diff/c63412b1 Branch: refs/heads/asf-site Commit: c63412b1bc0b74ade7e1982fdcd6e694561a95bb Parents: 6839c4d Author: Gang Wu <[email protected]> Authored: Thu Apr 12 13:51:30 2018 -0700 Committer: Gang Wu <[email protected]> Committed: Thu Apr 12 13:51:30 2018 -0700 ---------------------------------------------------------------------- develop/index.html | 3 +- docs/acid.html | 304 +++++- docs/adopters.html | 304 +++++- docs/building.html | 304 +++++- docs/compression.html | 310 +++++- docs/core-cpp.html | 2458 ++++++++++++++++++++++++++++++++++++++++++++ docs/core-java.html | 306 +++++- docs/cpp-tools.html | 2406 +++++++++++++++++++++++++++++++++++++++++++ docs/encodings.html | 310 +++++- docs/file-tail.html | 310 +++++- docs/hive-config.html | 304 +++++- docs/hive-ddl.html | 304 +++++- docs/index.html | 304 +++++- docs/indexes.html | 304 +++++- docs/java-tools.html | 2394 ++++++++++++++++++++++++++++++++++++++++++ docs/mapred.html | 304 +++++- docs/mapreduce.html | 304 +++++- docs/releases.html | 304 +++++- docs/run-length.html | 310 +++++- docs/spec-index.html | 310 +++++- docs/spec-intro.html | 312 +++++- docs/stripes.html | 310 +++++- docs/tools.html | 2177 --------------------------------------- docs/types.html | 304 +++++- 24 files changed, 12908 insertions(+), 2352 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/orc/blob/c63412b1/develop/index.html ---------------------------------------------------------------------- diff --git a/develop/index.html b/develop/index.html index f3c7b81..e920320 100644 --- a/develop/index.html +++ b/develop/index.html @@ -116,8 +116,7 @@ with archive <a href="https://mail-archives.apache.org/mod_mbox/orc-commits/";>he <h2 id="bug-reports">Bug reports</h2> -<p>Each code change requires a -<a href="https://issues.apache.org/jira/browse/ORC";>jira</a> to track the +<p>Each code change requires a <a href="https://issues.apache.org/jira/browse/ORC";>jira</a> to track the discussion of the change.</p> <h2 id="source-code">Source code</h2> http://git-wip-us.apache.org/repos/asf/orc/blob/c63412b1/docs/acid.html ---------------------------------------------------------------------- diff --git a/docs/acid.html b/docs/acid.html index a71fc0b..c460d41 100644 --- a/docs/acid.html +++ b/docs/acid.html @@ -111,6 +111,10 @@ + + + + <option value="/docs/index.html">Background</option> @@ -180,6 +184,10 @@ + + + + @@ -223,6 +231,10 @@ + + + + <option value="/docs/types.html">Types</option> @@ -251,6 +263,10 @@ + + + + <option value="/docs/indexes.html">Indexes</option> @@ -318,6 +334,10 @@ + + + + </optgroup> @@ -371,6 +391,10 @@ + + + + @@ -402,10 +426,14 @@ - <option value="/docs/releases.html">Releases</option> + + + + <option value="/docs/releases.html">Releases</option> + @@ -445,6 +473,10 @@ + + + + <option value="/docs/hive-ddl.html">Hive DDL</option> @@ -489,6 +521,10 @@ + + + + <option value="/docs/hive-config.html">Hive Configuration</option> @@ -550,10 +586,14 @@ - <option value="/docs/mapred.html">Using in MapRed</option> + + + + <option value="/docs/mapred.html">Using in MapRed</option> + @@ -598,12 +638,16 @@ - <option value="/docs/mapreduce.html">Using in MapReduce</option> + + <option value="/docs/mapreduce.html">Using in MapReduce</option> + + + @@ -635,6 +679,8 @@ + + <option value="/docs/core-java.html">Using Core Java</option> @@ -668,6 +714,58 @@ + + + + + + + + + + + + + + + + <option value="/docs/core-cpp.html">Using Core C++</option> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + </optgroup> @@ -692,6 +790,58 @@ + <option value="/docs/cpp-tools.html">C++ Tools</option> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + @@ -704,6 +854,8 @@ + <option value="/docs/java-tools.html">Java Tools</option> + @@ -716,7 +868,7 @@ - <option value="/docs/tools.html">Tools</option> + @@ -765,12 +917,16 @@ - <option value="/docs/spec-intro.html">Introduction</option> + + <option value="/docs/spec-intro.html">Introduction</option> + + + @@ -791,6 +947,10 @@ + + + + <option value="/docs/file-tail.html">File Tail</option> @@ -866,6 +1026,10 @@ + + + + @@ -899,12 +1063,16 @@ - <option value="/docs/run-length.html">Run Length Encoding</option> + + <option value="/docs/run-length.html">Run Length Encoding</option> + + + @@ -951,12 +1119,16 @@ - <option value="/docs/stripes.html">Stripes</option> + + <option value="/docs/stripes.html">Stripes</option> + + + @@ -973,6 +1145,10 @@ + + + + <option value="/docs/encodings.html">Column Encodings</option> @@ -1039,10 +1215,14 @@ - <option value="/docs/spec-index.html">Indexes</option> + + + + <option value="/docs/spec-index.html">Indexes</option> + @@ -1353,6 +1533,10 @@ file that donât need to be read in this task.</p> + + + + <li class=""><a href="/docs/index.html">Background</a></li> @@ -1417,6 +1601,10 @@ file that donât need to be read in this task.</p> + + + + <li class=""><a href="/docs/types.html">Types</a></li> @@ -1449,6 +1637,10 @@ file that donât need to be read in this task.</p> + + + + <li class=""><a href="/docs/indexes.html">Indexes</a></li> @@ -1523,6 +1715,12 @@ file that donât need to be read in this task.</p> + + + + + + <li class=""><a href="/docs/releases.html">Releases</a></li> @@ -1559,6 +1757,10 @@ file that donât need to be read in this task.</p> + + + + <li class=""><a href="/docs/hive-ddl.html">Hive DDL</a></li> @@ -1585,6 +1787,10 @@ file that donât need to be read in this task.</p> + + + + <li class=""><a href="/docs/hive-config.html">Hive Configuration</a></li> @@ -1627,6 +1833,12 @@ file that donât need to be read in this task.</p> + + + + + + <li class=""><a href="/docs/mapred.html">Using in MapRed</a></li> @@ -1663,6 +1875,12 @@ file that donât need to be read in this task.</p> + + + + + + <li class=""><a href="/docs/mapreduce.html">Using in MapReduce</a></li> @@ -1691,10 +1909,32 @@ file that donât need to be read in this task.</p> + + <li class=""><a href="/docs/core-java.html">Using Core Java</a></li> + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/core-cpp.html">Using Core C++</a></li> + + + </ul> @@ -1723,6 +1963,20 @@ file that donât need to be read in this task.</p> + <li class=""><a href="/docs/cpp-tools.html">C++ Tools</a></li> + + + + + + + + + + + + + @@ -1747,7 +2001,7 @@ file that donât need to be read in this task.</p> - <li class=""><a href="/docs/tools.html">Tools</a></li> + <li class=""><a href="/docs/java-tools.html">Java Tools</a></li> @@ -1799,6 +2053,12 @@ file that donât need to be read in this task.</p> + + + + + + <li class=""><a href="/docs/spec-intro.html">Introduction</a></li> @@ -1823,6 +2083,10 @@ file that donât need to be read in this task.</p> + + + + <li class=""><a href="/docs/file-tail.html">File Tail</a></li> @@ -1881,6 +2145,12 @@ file that donât need to be read in this task.</p> + + + + + + <li class=""><a href="/docs/run-length.html">Run Length Encoding</a></li> @@ -1927,6 +2197,12 @@ file that donât need to be read in this task.</p> + + + + + + <li class=""><a href="/docs/stripes.html">Stripes</a></li> @@ -1949,6 +2225,10 @@ file that donât need to be read in this task.</p> + + + + <li class=""><a href="/docs/encodings.html">Column Encodings</a></li> @@ -1991,6 +2271,12 @@ file that donât need to be read in this task.</p> + + + + + + <li class=""><a href="/docs/spec-index.html">Indexes</a></li> http://git-wip-us.apache.org/repos/asf/orc/blob/c63412b1/docs/adopters.html ---------------------------------------------------------------------- diff --git a/docs/adopters.html b/docs/adopters.html index 8f44d2f..b30ef6e 100644 --- a/docs/adopters.html +++ b/docs/adopters.html @@ -111,6 +111,10 @@ + + + + <option value="/docs/index.html">Background</option> @@ -180,6 +184,10 @@ + + + + @@ -223,6 +231,10 @@ + + + + <option value="/docs/types.html">Types</option> @@ -251,6 +263,10 @@ + + + + <option value="/docs/indexes.html">Indexes</option> @@ -318,6 +334,10 @@ + + + + </optgroup> @@ -371,6 +391,10 @@ + + + + @@ -402,10 +426,14 @@ - <option value="/docs/releases.html">Releases</option> + + + + <option value="/docs/releases.html">Releases</option> + @@ -445,6 +473,10 @@ + + + + <option value="/docs/hive-ddl.html">Hive DDL</option> @@ -489,6 +521,10 @@ + + + + <option value="/docs/hive-config.html">Hive Configuration</option> @@ -550,10 +586,14 @@ - <option value="/docs/mapred.html">Using in MapRed</option> + + + + <option value="/docs/mapred.html">Using in MapRed</option> + @@ -598,12 +638,16 @@ - <option value="/docs/mapreduce.html">Using in MapReduce</option> + + <option value="/docs/mapreduce.html">Using in MapReduce</option> + + + @@ -635,6 +679,8 @@ + + <option value="/docs/core-java.html">Using Core Java</option> @@ -668,6 +714,58 @@ + + + + + + + + + + + + + + + + <option value="/docs/core-cpp.html">Using Core C++</option> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + </optgroup> @@ -692,6 +790,58 @@ + <option value="/docs/cpp-tools.html">C++ Tools</option> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + @@ -704,6 +854,8 @@ + <option value="/docs/java-tools.html">Java Tools</option> + @@ -716,7 +868,7 @@ - <option value="/docs/tools.html">Tools</option> + @@ -765,12 +917,16 @@ - <option value="/docs/spec-intro.html">Introduction</option> + + <option value="/docs/spec-intro.html">Introduction</option> + + + @@ -791,6 +947,10 @@ + + + + <option value="/docs/file-tail.html">File Tail</option> @@ -866,6 +1026,10 @@ + + + + @@ -899,12 +1063,16 @@ - <option value="/docs/run-length.html">Run Length Encoding</option> + + <option value="/docs/run-length.html">Run Length Encoding</option> + + + @@ -951,12 +1119,16 @@ - <option value="/docs/stripes.html">Stripes</option> + + <option value="/docs/stripes.html">Stripes</option> + + + @@ -973,6 +1145,10 @@ + + + + <option value="/docs/encodings.html">Column Encodings</option> @@ -1039,10 +1215,14 @@ - <option value="/docs/spec-index.html">Indexes</option> + + + + <option value="/docs/spec-index.html">Indexes</option> + @@ -1200,6 +1380,10 @@ Analytic Database to the Hadoop ecosystem.</p> + + + + <li class=""><a href="/docs/index.html">Background</a></li> @@ -1264,6 +1448,10 @@ Analytic Database to the Hadoop ecosystem.</p> + + + + <li class=""><a href="/docs/types.html">Types</a></li> @@ -1296,6 +1484,10 @@ Analytic Database to the Hadoop ecosystem.</p> + + + + <li class=""><a href="/docs/indexes.html">Indexes</a></li> @@ -1370,6 +1562,12 @@ Analytic Database to the Hadoop ecosystem.</p> + + + + + + <li class=""><a href="/docs/releases.html">Releases</a></li> @@ -1406,6 +1604,10 @@ Analytic Database to the Hadoop ecosystem.</p> + + + + <li class=""><a href="/docs/hive-ddl.html">Hive DDL</a></li> @@ -1432,6 +1634,10 @@ Analytic Database to the Hadoop ecosystem.</p> + + + + <li class=""><a href="/docs/hive-config.html">Hive Configuration</a></li> @@ -1474,6 +1680,12 @@ Analytic Database to the Hadoop ecosystem.</p> + + + + + + <li class=""><a href="/docs/mapred.html">Using in MapRed</a></li> @@ -1510,6 +1722,12 @@ Analytic Database to the Hadoop ecosystem.</p> + + + + + + <li class=""><a href="/docs/mapreduce.html">Using in MapReduce</a></li> @@ -1538,10 +1756,32 @@ Analytic Database to the Hadoop ecosystem.</p> + + <li class=""><a href="/docs/core-java.html">Using Core Java</a></li> + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/core-cpp.html">Using Core C++</a></li> + + + </ul> @@ -1570,6 +1810,20 @@ Analytic Database to the Hadoop ecosystem.</p> + <li class=""><a href="/docs/cpp-tools.html">C++ Tools</a></li> + + + + + + + + + + + + + @@ -1594,7 +1848,7 @@ Analytic Database to the Hadoop ecosystem.</p> - <li class=""><a href="/docs/tools.html">Tools</a></li> + <li class=""><a href="/docs/java-tools.html">Java Tools</a></li> @@ -1646,6 +1900,12 @@ Analytic Database to the Hadoop ecosystem.</p> + + + + + + <li class=""><a href="/docs/spec-intro.html">Introduction</a></li> @@ -1670,6 +1930,10 @@ Analytic Database to the Hadoop ecosystem.</p> + + + + <li class=""><a href="/docs/file-tail.html">File Tail</a></li> @@ -1728,6 +1992,12 @@ Analytic Database to the Hadoop ecosystem.</p> + + + + + + <li class=""><a href="/docs/run-length.html">Run Length Encoding</a></li> @@ -1774,6 +2044,12 @@ Analytic Database to the Hadoop ecosystem.</p> + + + + + + <li class=""><a href="/docs/stripes.html">Stripes</a></li> @@ -1796,6 +2072,10 @@ Analytic Database to the Hadoop ecosystem.</p> + + + + <li class=""><a href="/docs/encodings.html">Column Encodings</a></li> @@ -1838,6 +2118,12 @@ Analytic Database to the Hadoop ecosystem.</p> + + + + + + <li class=""><a href="/docs/spec-index.html">Indexes</a></li> http://git-wip-us.apache.org/repos/asf/orc/blob/c63412b1/docs/building.html ---------------------------------------------------------------------- diff --git a/docs/building.html b/docs/building.html index f70fe4a..bbe1ec4 100644 --- a/docs/building.html +++ b/docs/building.html @@ -111,6 +111,10 @@ + + + + <option value="/docs/index.html">Background</option> @@ -180,6 +184,10 @@ + + + + @@ -223,6 +231,10 @@ + + + + <option value="/docs/types.html">Types</option> @@ -251,6 +263,10 @@ + + + + <option value="/docs/indexes.html">Indexes</option> @@ -318,6 +334,10 @@ + + + + </optgroup> @@ -371,6 +391,10 @@ + + + + @@ -402,10 +426,14 @@ - <option value="/docs/releases.html">Releases</option> + + + + <option value="/docs/releases.html">Releases</option> + @@ -445,6 +473,10 @@ + + + + <option value="/docs/hive-ddl.html">Hive DDL</option> @@ -489,6 +521,10 @@ + + + + <option value="/docs/hive-config.html">Hive Configuration</option> @@ -550,10 +586,14 @@ - <option value="/docs/mapred.html">Using in MapRed</option> + + + + <option value="/docs/mapred.html">Using in MapRed</option> + @@ -598,12 +638,16 @@ - <option value="/docs/mapreduce.html">Using in MapReduce</option> + + <option value="/docs/mapreduce.html">Using in MapReduce</option> + + + @@ -635,6 +679,8 @@ + + <option value="/docs/core-java.html">Using Core Java</option> @@ -668,6 +714,58 @@ + + + + + + + + + + + + + + + + <option value="/docs/core-cpp.html">Using Core C++</option> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + </optgroup> @@ -692,6 +790,58 @@ + <option value="/docs/cpp-tools.html">C++ Tools</option> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + @@ -704,6 +854,8 @@ + <option value="/docs/java-tools.html">Java Tools</option> + @@ -716,7 +868,7 @@ - <option value="/docs/tools.html">Tools</option> + @@ -765,12 +917,16 @@ - <option value="/docs/spec-intro.html">Introduction</option> + + <option value="/docs/spec-intro.html">Introduction</option> + + + @@ -791,6 +947,10 @@ + + + + <option value="/docs/file-tail.html">File Tail</option> @@ -866,6 +1026,10 @@ + + + + @@ -899,12 +1063,16 @@ - <option value="/docs/run-length.html">Run Length Encoding</option> + + <option value="/docs/run-length.html">Run Length Encoding</option> + + + @@ -951,12 +1119,16 @@ - <option value="/docs/stripes.html">Stripes</option> + + <option value="/docs/stripes.html">Stripes</option> + + + @@ -973,6 +1145,10 @@ + + + + <option value="/docs/encodings.html">Column Encodings</option> @@ -1039,10 +1215,14 @@ - <option value="/docs/spec-index.html">Indexes</option> + + + + <option value="/docs/spec-index.html">Indexes</option> + @@ -1232,6 +1412,10 @@ is invoking:</p> + + + + <li class=""><a href="/docs/index.html">Background</a></li> @@ -1296,6 +1480,10 @@ is invoking:</p> + + + + <li class=""><a href="/docs/types.html">Types</a></li> @@ -1328,6 +1516,10 @@ is invoking:</p> + + + + <li class=""><a href="/docs/indexes.html">Indexes</a></li> @@ -1402,6 +1594,12 @@ is invoking:</p> + + + + + + <li class=""><a href="/docs/releases.html">Releases</a></li> @@ -1438,6 +1636,10 @@ is invoking:</p> + + + + <li class=""><a href="/docs/hive-ddl.html">Hive DDL</a></li> @@ -1464,6 +1666,10 @@ is invoking:</p> + + + + <li class=""><a href="/docs/hive-config.html">Hive Configuration</a></li> @@ -1506,6 +1712,12 @@ is invoking:</p> + + + + + + <li class=""><a href="/docs/mapred.html">Using in MapRed</a></li> @@ -1542,6 +1754,12 @@ is invoking:</p> + + + + + + <li class=""><a href="/docs/mapreduce.html">Using in MapReduce</a></li> @@ -1570,10 +1788,32 @@ is invoking:</p> + + <li class=""><a href="/docs/core-java.html">Using Core Java</a></li> + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/core-cpp.html">Using Core C++</a></li> + + + </ul> @@ -1602,6 +1842,20 @@ is invoking:</p> + <li class=""><a href="/docs/cpp-tools.html">C++ Tools</a></li> + + + + + + + + + + + + + @@ -1626,7 +1880,7 @@ is invoking:</p> - <li class=""><a href="/docs/tools.html">Tools</a></li> + <li class=""><a href="/docs/java-tools.html">Java Tools</a></li> @@ -1678,6 +1932,12 @@ is invoking:</p> + + + + + + <li class=""><a href="/docs/spec-intro.html">Introduction</a></li> @@ -1702,6 +1962,10 @@ is invoking:</p> + + + + <li class=""><a href="/docs/file-tail.html">File Tail</a></li> @@ -1760,6 +2024,12 @@ is invoking:</p> + + + + + + <li class=""><a href="/docs/run-length.html">Run Length Encoding</a></li> @@ -1806,6 +2076,12 @@ is invoking:</p> + + + + + + <li class=""><a href="/docs/stripes.html">Stripes</a></li> @@ -1828,6 +2104,10 @@ is invoking:</p> + + + + <li class=""><a href="/docs/encodings.html">Column Encodings</a></li> @@ -1870,6 +2150,12 @@ is invoking:</p> + + + + + + <li class=""><a href="/docs/spec-index.html">Indexes</a></li> http://git-wip-us.apache.org/repos/asf/orc/blob/c63412b1/docs/compression.html ---------------------------------------------------------------------- diff --git a/docs/compression.html b/docs/compression.html index ff1b771..2c70cb8 100644 --- a/docs/compression.html +++ b/docs/compression.html @@ -111,6 +111,10 @@ + + + + <option value="/docs/index.html">Background</option> @@ -180,6 +184,10 @@ + + + + @@ -223,6 +231,10 @@ + + + + <option value="/docs/types.html">Types</option> @@ -251,6 +263,10 @@ + + + + <option value="/docs/indexes.html">Indexes</option> @@ -318,6 +334,10 @@ + + + + </optgroup> @@ -371,6 +391,10 @@ + + + + @@ -402,12 +426,16 @@ - <option value="/docs/releases.html">Releases</option> + + <option value="/docs/releases.html">Releases</option> + + + @@ -445,6 +473,10 @@ + + + + <option value="/docs/hive-ddl.html">Hive DDL</option> @@ -489,6 +521,10 @@ + + + + <option value="/docs/hive-config.html">Hive Configuration</option> @@ -550,12 +586,16 @@ - <option value="/docs/mapred.html">Using in MapRed</option> + + <option value="/docs/mapred.html">Using in MapRed</option> + + + @@ -598,12 +638,16 @@ - <option value="/docs/mapreduce.html">Using in MapReduce</option> + + <option value="/docs/mapreduce.html">Using in MapReduce</option> + + + @@ -635,6 +679,8 @@ + + <option value="/docs/core-java.html">Using Core Java</option> @@ -668,6 +714,58 @@ + + + + + + + + + + + + + + + + <option value="/docs/core-cpp.html">Using Core C++</option> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + </optgroup> @@ -692,6 +790,56 @@ + <option value="/docs/cpp-tools.html">C++ Tools</option> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + @@ -706,6 +854,8 @@ + <option value="/docs/java-tools.html">Java Tools</option> + @@ -716,7 +866,9 @@ - <option value="/docs/tools.html">Tools</option> + + + @@ -765,12 +917,16 @@ - <option value="/docs/spec-intro.html">Introduction</option> + + <option value="/docs/spec-intro.html">Introduction</option> + + + @@ -791,6 +947,10 @@ + + + + <option value="/docs/file-tail.html">File Tail</option> @@ -866,6 +1026,10 @@ + + + + @@ -899,12 +1063,16 @@ - <option value="/docs/run-length.html">Run Length Encoding</option> + + <option value="/docs/run-length.html">Run Length Encoding</option> + + + @@ -951,12 +1119,16 @@ - <option value="/docs/stripes.html">Stripes</option> + + <option value="/docs/stripes.html">Stripes</option> + + + @@ -973,6 +1145,10 @@ + + + + <option value="/docs/encodings.html">Column Encodings</option> @@ -1039,10 +1215,14 @@ - <option value="/docs/spec-index.html">Indexes</option> + + + + <option value="/docs/spec-index.html">Indexes</option> + @@ -1142,6 +1322,12 @@ with no headers.</p> + + + + + + <div class="section-nav"> <div class="left align-right"> @@ -1198,6 +1384,10 @@ with no headers.</p> + + + + <li class=""><a href="/docs/index.html">Background</a></li> @@ -1262,6 +1452,10 @@ with no headers.</p> + + + + <li class=""><a href="/docs/types.html">Types</a></li> @@ -1294,6 +1488,10 @@ with no headers.</p> + + + + <li class=""><a href="/docs/indexes.html">Indexes</a></li> @@ -1368,6 +1566,12 @@ with no headers.</p> + + + + + + <li class=""><a href="/docs/releases.html">Releases</a></li> @@ -1404,6 +1608,10 @@ with no headers.</p> + + + + <li class=""><a href="/docs/hive-ddl.html">Hive DDL</a></li> @@ -1430,6 +1638,10 @@ with no headers.</p> + + + + <li class=""><a href="/docs/hive-config.html">Hive Configuration</a></li> @@ -1472,6 +1684,12 @@ with no headers.</p> + + + + + + <li class=""><a href="/docs/mapred.html">Using in MapRed</a></li> @@ -1508,6 +1726,12 @@ with no headers.</p> + + + + + + <li class=""><a href="/docs/mapreduce.html">Using in MapReduce</a></li> @@ -1536,10 +1760,32 @@ with no headers.</p> + + <li class=""><a href="/docs/core-java.html">Using Core Java</a></li> + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/core-cpp.html">Using Core C++</a></li> + + + </ul> 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href="/docs/spec-index.html">Indexes</a></li> http://git-wip-us.apache.org/repos/asf/orc/blob/c63412b1/docs/core-cpp.html ---------------------------------------------------------------------- diff --git a/docs/core-cpp.html b/docs/core-cpp.html new file mode 100644 index 0000000..130d019 --- /dev/null +++ b/docs/core-cpp.html @@ -0,0 +1,2458 @@ +<!DOCTYPE HTML> +<html lang="en-US"> +<head> + <meta charset="UTF-8"> + <title>Using Core C++</title> + <meta name="viewport" content="width=device-width,initial-scale=1"> + <meta name="generator" content="Jekyll v2.4.0"> + <link rel="stylesheet" href="//fonts.googleapis.com/css?family=Lato:300,300italic,400,400italic,700,700italic,900"> + <link rel="stylesheet" href="/css/screen.css"> + <link rel="icon" type="image/x-icon" href="/favicon.ico"> + <!--[if lt IE 9]> + <script src="/js/html5shiv.min.js"></script> + <script src="/js/respond.min.js"></script> + <![endif]--> +</head> + + +<body class="wrap"> + <header role="banner"> + <nav 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+ + + + + + + + </optgroup> + + <optgroup label="Using in MapReduce"> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <option value="/docs/mapred.html">Using in MapRed</option> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <option value="/docs/mapreduce.html">Using in MapReduce</option> + + + + + + + + + + + + + + + + + </optgroup> + + <optgroup label="Using ORC Core"> + + + + + + + + + + + + + + + + + + <option value="/docs/core-java.html">Using Core Java</option> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <option value="/docs/core-cpp.html">Using Core C++</option> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + </optgroup> + + <optgroup label="Tools"> + + + + + + + + + + + + + + + + + + + + <option value="/docs/cpp-tools.html">C++ Tools</option> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + 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+ + + + + + + + + + + + + + + + + + + + + + <option value="/docs/encodings.html">Column Encodings</option> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <option value="/docs/spec-index.html">Indexes</option> + + + + + + + + + + + </optgroup> + + </select> +</div> + + + <div class="unit four-fifths"> + <article> + <h1>Using Core C++</h1> + <p>The C++ Core ORC API reads and writes ORC files into its own +orc::ColumnVectorBatch vectorized classes.</p> + +<h2 id="vectorized-row-batch">Vectorized Row Batch</h2> + +<p>Data is passed to ORC as instances of orc::ColumnVectorBatch +that contain the data a batch of rows. The focus is on speed and +accessing the data fields directly. <code>numElements</code> is the number +of rows. ColumnVectorBatch is the parent type of the different +kinds of columns and has some fields that are shared across +all of the column types. In particular, the <code>hasNulls</code> flag +if there is any null in this column for this batch. For columns +where <code>hasNulls == true</code> the <code>notNull</code> buffer is false if that +value is null.</p> + +<pre><code class="language-cpp">namespace orc { + struct ColumnVectorBatch { + uint64_t numElements; + DataBuffer<char> notNull; + bool hasNulls; + ... + } +} +</code></pre> + +<p>The subtypes of ColumnVectorBatch are:</p> + +<table> + <thead> + <tr> + <th>ORC Type</th> + <th>ColumnVectorBatch</th> + </tr> + </thead> + <tbody> + <tr> + <td>array</td> + <td>ListVectorBatch</td> + </tr> + <tr> + <td>binary</td> + <td>StringVectorBatch</td> + </tr> + <tr> + <td>bigint</td> + <td>LongVectorBatch</td> + </tr> + <tr> + <td>boolean</td> + <td>LongVectorBatch</td> + </tr> + <tr> + <td>char</td> + <td>StringVectorBatch</td> + </tr> + <tr> + <td>date</td> + <td>LongVectorBatch</td> + </tr> + <tr> + <td>decimal</td> + <td>Decimal64VectorBatch, Decimal128VectorBatch</td> + </tr> + <tr> + <td>double</td> + <td>DoubleVectorBatch</td> + </tr> + <tr> + <td>float</td> + <td>DoubleVectorBatch</td> + </tr> + <tr> + <td>int</td> + <td>LongVectorBatch</td> + </tr> + <tr> + <td>map</td> + <td>MapVectorBatch</td> + </tr> + <tr> + <td>smallint</td> + <td>LongVectorBatch</td> + </tr> + <tr> + <td>string</td> + <td>StringVectorBatch</td> + </tr> + <tr> + <td>struct</td> + <td>StructVectorBatch</td> + </tr> + <tr> + <td>timestamp</td> + <td>TimestampVectorBatch</td> + </tr> + <tr> + <td>tinyint</td> + <td>LongVectorBatch</td> + </tr> + <tr> + <td>uniontype</td> + <td>UnionVectorBatch</td> + </tr> + <tr> + <td>varchar</td> + <td>StringVectorBatch</td> + </tr> + </tbody> +</table> + +<p>LongVectorBatch handles all of the integer types (boolean, bigint, +date, int, smallint, and tinyint). The data is represented as a +buffer of int64_t where each value is sign-extended as necessary.</p> + +<pre><code class="language-cpp"> struct LongVectorBatch: public ColumnVectorBatch { + DataBuffer<int64_t> data; + ... + }; +</code></pre> + +<p>TimestampVectorBatch handles timestamp values. The data is +represented as two buffers of int64_t for seconds and nanoseconds +respectively. Note that we always assume data is in GMT timezone; +therefore it is userâs responsibility to convert wall clock time +from local timezone to GMT.</p> + +<pre><code class="language-cpp"> struct TimestampVectorBatch: public ColumnVectorBatch { + DataBuffer<int64_t> data; + DataBuffer<int64_t> nanoseconds; + ... + }; +</code></pre> + +<p>DoubleVectorBatch handles all of the floating point types +(double, and float). The data is represented as a buffer of doubles.</p> + +<pre><code class="language-cpp"> struct DoubleVectorBatch: public ColumnVectorBatch { + DataBuffer<double> data; + ... + }; +</code></pre> + +<p>Decimal64VectorBatch handles decimal columns with precision no +greater than 18. Decimal128VectorBatch handles the others. The data +is represented as a buffer of int64_t and orc::Int128 respectively.</p> + +<pre><code class="language-cpp"> struct Decimal64VectorBatch: public ColumnVectorBatch { + DataBuffer<int64_t> values; + ... + }; + + struct Decimal128VectorBatch: public ColumnVectorBatch { + DataBuffer<Int128> values; + ... + }; +</code></pre> + +<p>StringVectorBatch handles all of the binary types (binary, +char, string, and varchar). The data is represented as a char* buffer, +and a length buffer.</p> + +<pre><code class="language-cpp"> struct StringVectorBatch: public ColumnVectorBatch { + DataBuffer<char*> data; + DataBuffer<int64_t> length; + ... + }; +</code></pre> + +<p>StructVectorBatch handles the struct columns and represents +the data as a buffer of <code>ColumnVectorBatch</code>.</p> + +<pre><code class="language-cpp"> struct StructVectorBatch: public ColumnVectorBatch { + std::vector<ColumnVectorBatch*> fields; + ... + }; +</code></pre> + +<p>UnionVectorBatch handles the union columns. It uses <code>tags</code> +to indicate which subtype has the value and <code>offsets</code> indicates +the offset in child batch of that subtype. A individual +<code>ColumnVectorBatch</code> is used for each subtype.</p> + +<pre><code class="language-cpp"> struct UnionVectorBatch: public ColumnVectorBatch { + DataBuffer<unsigned char> tags; + DataBuffer<uint64_t> offsets; + std::vector<ColumnVectorBatch*> children; + ... + }; +</code></pre> + +<p>ListVectorBatch handles the array columns and represents +the data as a buffer of integers for the offsets and a +<code>ColumnVectorBatch</code> for the children values.</p> + +<pre><code class="language-cpp"> struct ListVectorBatch: public ColumnVectorBatch { + DataBuffer<int64_t> offsets; + ORC_UNIQUE_PTR<ColumnVectorBatch> elements; + ... + }; +</code></pre> + +<p>MapVectorBatch handles the map columns and represents the data +as two arrays of integers for the offsets and two <code>ColumnVectorBatch</code>s +for the keys and values.</p> + +<pre><code class="language-cpp"> struct MapVectorBatch: public ColumnVectorBatch { + DataBuffer<int64_t> offsets; + ORC_UNIQUE_PTR<ColumnVectorBatch> keys; + ORC_UNIQUE_PTR<ColumnVectorBatch> elements; + ... + }; +</code></pre> + +<h2 id="writing-orc-files">Writing ORC Files</h2> + +<p>To write an ORC file, you need to include <code>OrcFile.hh</code> and define +the schema; then use <code>orc::OutputStream</code> and <code>orc::WriterOptions</code> +to create a <code>orc::Writer</code> with the desired filename. This example +sets the required schema parameter, but there are many other +options to control the ORC writer.</p> + +<pre><code class="language-cpp">ORC_UNIQUE_PTR<OutputStream> outStream = + writeLocalFile("my-file.orc"); +ORC_UNIQUE_PTR<Type> schema( + Type::buildTypeFromString("struct<x:int,y:int>")); +WriterOptions options; +ORC_UNIQUE_PTR<Writer> writer = + createWriter(*schema, outStream.get(), options); +</code></pre> + +<p>Now you need to create a row batch, set the data, and write it to the file +as the batch fills up. When the file is done, close the <code>Writer</code>.</p> + +<pre><code class="language-cpp">uint64_t batchSize = 1024, rowCount = 10000; +ORC_UNIQUE_PTR<ColumnVectorBatch> batch = + writer->createRowBatch(batchSize); +StructVectorBatch *root = + dynamic_cast<StructVectorBatch *>(batch.get()); +LongVectorBatch *x = + dynamic_cast<LongVectorBatch *>(root->fields[0]); +LongVectorBatch *y = + dynamic_cast<LongVectorBatch *>(root->fields[1]); + +uint64_t rows = 0; +for (uint64_t i = 0; i < rowCount; ++i) { + x->data[rows] = i; + y->data[rows] = i * 3; + rows++; + + if (rows == batchSize) { + root->numElements = rows; + x->numElements = rows; + y->numElements = rows; + + writer->add(*batch); + rows = 0; + } +} + +if (rows != 0) { + root->numElements = rows; + x->numElements = rows; + y->numElements = rows; + + writer->add(*batch); + rows = 0; +} + +writer->close(); +</code></pre> + +<h2 id="reading-orc-files">Reading ORC Files</h2> + +<p>To read ORC files, include <code>OrcFile.hh</code> file to create a <code>orc::Reader</code> +that contains the metadata about the file. There are a few options to +the <code>orc::Reader</code>, but far fewer than the writer and none of them are +required. The reader has methods for getting the number of rows, +schema, compression, etc. from the file.</p> + +<pre><code class="language-cpp">ORC_UNIQUE_PTR<InputStream> inStream = + readLocalFile("my-file.orc"); +ReaderOptions options; +ORC_UNIQUE_PTR<Reader> reader = + createReader(inStream, options); +</code></pre> + +<p>To get the data, create a <code>orc::RowReader</code> object. By default, +the RowReader reads all rows and all columns, but there are +options to control the data that is read.</p> + +<pre><code class="language-cpp">RowReaderOptions rowReaderOptions; +ORC_UNIQUE_PTR<RowReader> rowReader = + reader->createRowReader(rowReaderOptions); +ORC_UNIQUE_PTR<ColumnVectorBatch> batch = + rowReader->createRowBatch(1024); +</code></pre> + +<p>With a <code>orc::RowReader</code> the user can ask for the next batch until there +are no more left. The reader will stop the batch at certain boundaries, +so the returned batch may not be full, but it will always contain some rows.</p> + +<pre><code class="language-cpp">while (rowReader->next(*batch)) { + for (uint64_t r = 0; r < batch->numElements; ++r) { + ... process row r from batch + } +} +</code></pre> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <div class="section-nav"> + <div class="left align-right"> + + + + <a href="/docs/core-java.html" class="prev">Back</a> + + </div> + <div class="right align-left"> + + + + <a href="/docs/cpp-tools.html" class="next">Next</a> + + </div> + </div> + <div class="clear"></div> + + + </article> + </div> + + <div class="unit one-fifth hide-on-mobiles"> + <aside> + + <h4>Overview</h4> + + +<ul> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/index.html">Background</a></li> + + + + + + + + + + + + + + <li class=""><a href="/docs/adopters.html">ORC Adopters</a></li> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/types.html">Types</a></li> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/indexes.html">Indexes</a></li> + + + + + + + + + + + + <li class=""><a href="/docs/acid.html">ACID support</a></li> + + + +</ul> + + + <h4>Installing</h4> + + +<ul> + + + + + + + + + + + + + + <li class=""><a href="/docs/building.html">Building ORC</a></li> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/releases.html">Releases</a></li> + + + +</ul> + + + <h4>Using in Hive</h4> + + +<ul> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/hive-ddl.html">Hive DDL</a></li> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/hive-config.html">Hive Configuration</a></li> + + + +</ul> + + + <h4>Using in MapReduce</h4> + + +<ul> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/mapred.html">Using in MapRed</a></li> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/mapreduce.html">Using in MapReduce</a></li> + + + +</ul> + + + <h4>Using ORC Core</h4> + + +<ul> + + + + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/core-java.html">Using Core Java</a></li> + + + + + + + + + + + + + + + + + + + + <li class="current"><a href="/docs/core-cpp.html">Using Core C++</a></li> + + + +</ul> + + + <h4>Tools</h4> + + +<ul> + + + + + + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/cpp-tools.html">C++ Tools</a></li> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/java-tools.html">Java Tools</a></li> + + + +</ul> + + + <h4>Format Specification</h4> + + +<ul> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/spec-intro.html">Introduction</a></li> + + + + + + + + + + + + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/file-tail.html">File Tail</a></li> + + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/compression.html">Compression</a></li> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/run-length.html">Run Length Encoding</a></li> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/stripes.html">Stripes</a></li> + + + + + + + + + + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/encodings.html">Column Encodings</a></li> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <li class=""><a href="/docs/spec-index.html">Indexes</a></li> + + + +</ul> + + + </aside> +</div> + + + <div class="clear"></div> + + </div> + </section> + + + <footer role="contentinfo"> + <p>The contents of this website are © 2018 + <a href="https://www.apache.org/";>Apache Software Foundation</a> + under the terms of the <a + href="https://www.apache.org/licenses/LICENSE-2.0.html";> + Apache License v2</a>. 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