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Cleanup covering infrastructure

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- Explicitly forbids opclass, collation and indoptions (like DESC/ASC etc) for
  including columns. Throw an error if user points that.
- Truncated storage arrays for such attributes to store only key atrributes,
  added assertion checks.
- Do not check opfamily and collation for including columns in
  CompareIndexInfo()

Discussion: https://www.postgresql.org/message-id/5ee72852-3c4e-ee35-e2ed-c1d053d45c08@sigaev.ru
This commit is contained in:
Teodor Sigaev
2018-04-12 16:37:22 +03:00
parent 08ea7a2291
commit c266ed31a8
8 changed files with 90 additions and 39 deletions
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6
src/backend/utils/adt/ruleutils.c
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@ -1356,15 +1356,15 @@ pg_get_indexdef_worker(Oid indexrelid, int colno,
{
Oid indcoll;
if (keyno >= idxrec->indnkeyatts)
continue;
/* Add collation, if not default for column */
indcoll = indcollation->values[keyno];
if (OidIsValid(indcoll) && indcoll != keycolcollation)
appendStringInfo(&buf, " COLLATE %s",
generate_collation_name((indcoll)));
if (keyno >= idxrec->indnkeyatts)
continue;
/* Add the operator class name, if not default */
get_opclass_name(indclass->values[keyno], keycoltype, &buf);