Add index on id columns #2117
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Add index on id columns #2117
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- Whenever a label will be created, indices on id columns will be created by default. In case of vertex, a unique index on id column will be created, which will also serve as a unique constraint. In case of edge, a non-unique index on start_id and end_id columns will be created. - This change is expected to improve the performance of queries that involve joins. From some performance tests, it was observed that the performance of queries improved alot. - Loader was updated to insert tuples in indices as well. This has caused to slow the loader down a bit, but it was necessary. - A bug related to command ids in cypher_delete executor was also fixed.
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Whenever a label will be created, indices on id columns will be created by default. In case of vertex, a unique index on id column will be created, which will also serve as a unique constraint. In case of edge, a non-unique index on start_id and end_id columns will be created.
This change is expected to improve the performance of queries that involve joins. From some tests, it was observed that the performance of queries improved alot.
Loader was updated to insert tuples in indices as well. This has caused the loader to slow down a bit, but it was necessary.
A bug related to command ids in cypher_delete executor was also fixed.