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Add record_image_ops opclass for matview concurrent refresh.

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REFRESH MATERIALIZED VIEW CONCURRENTLY was broken for any matview
containing a column of a type without a default btree operator
class.  It also did not produce results consistent with a non-
concurrent REFRESH or a normal view if any column was of a type
which allowed user-visible differences between values which
compared as equal according to the type's default btree opclass.
Concurrent matview refresh was modified to use the new operators
to solve these problems.

Documentation was added for record comparison, both for the
default btree operator class for record, and the newly added
operators.  Regression tests now check for proper behavior both
for a matview with a box column and a matview containing a citext
column.

Reviewed by Steve Singer, who suggested some of the doc language.
This commit is contained in:
Kevin Grittner
2013-10-09 14:26:09 -05:00
parent 1cccce50f3
commit f566515192
17 changed files with 775 additions and 37 deletions
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7
src/include/utils/builtins.h
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@ -631,6 +631,13 @@ extern Datum record_gt(PG_FUNCTION_ARGS);
extern Datum record_le(PG_FUNCTION_ARGS);
extern Datum record_ge(PG_FUNCTION_ARGS);
extern Datum btrecordcmp(PG_FUNCTION_ARGS);
extern Datum record_image_eq(PG_FUNCTION_ARGS);
extern Datum record_image_ne(PG_FUNCTION_ARGS);
extern Datum record_image_lt(PG_FUNCTION_ARGS);
extern Datum record_image_gt(PG_FUNCTION_ARGS);
extern Datum record_image_le(PG_FUNCTION_ARGS);
extern Datum record_image_ge(PG_FUNCTION_ARGS);
extern Datum btrecordimagecmp(PG_FUNCTION_ARGS);
/* ruleutils.c */
extern bool quote_all_identifiers;