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Tom Lane cfc5008a51 Adjust naming of indexes and their columns per recent discussion. ... Index expression columns are now named after the FigureColname result for their expressions, rather than always being "pg_expression_N". Digits are appended to this name if needed to make the column name unique within the index. (That happens for regular columns too, thus fixing the old problem that CREATE INDEX fooi ON foo (f1, f1) fails. Before exclusion indexes there was no real reason to do such a thing, but now maybe there is.) Default names for indexes and associated constraints now include the column names of all their columns, not only the first one as in previous practice. (Of course, this will be truncated as needed to fit in NAMEDATALEN. Also, pkey indexes retain the historical behavior of not naming specific columns at all.) An example of the results: regression=# create table foo (f1 int, f2 text, regression(# exclude (f1 with =, lower(f2) with =)); NOTICE: CREATE TABLE / EXCLUDE will create implicit index "foo_f1_lower_exclusion" for table "foo" CREATE TABLE regression=# \d foo_f1_lower_exclusion Index "public.foo_f1_lower_exclusion" Column | Type | Definition --------+---------+------------ f1 | integer | f1 lower | text | lower(f2) btree, for table "public.foo"		16 years ago
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analyze.h	When FOR UPDATE/SHARE is used with LIMIT, put the LockRows plan node	16 years ago
gramparse.h	Re-refactor the core scanner's API, in order to get out from under the problem	16 years ago
keywords.h	Tweak the core scanner so that it can be used by plpgsql too.	17 years ago
kwlist.h	Add exclusion constraints, which generalize the concept of uniqueness to	16 years ago
parse_agg.h	Support ORDER BY within aggregate function calls, at long last providing a	16 years ago
parse_clause.h	Support ORDER BY within aggregate function calls, at long last providing a	16 years ago
parse_coerce.h	8.4 pgindent run, with new combined Linux/FreeBSD/MinGW typedef list	17 years ago
parse_cte.h	Fix bug with WITH RECURSIVE immediately inside WITH RECURSIVE. 99% of the	17 years ago
parse_expr.h	Update copyright for 2009.	17 years ago
parse_func.h	Support ORDER BY within aggregate function calls, at long last providing a	16 years ago
parse_node.h	Implement parser hooks for processing ColumnRef and ParamRef nodes, as per my	16 years ago
parse_oper.h	Update copyright for 2009.	17 years ago
parse_param.h	Implement parser hooks for processing ColumnRef and ParamRef nodes, as per my	16 years ago
parse_relation.h	Implement parser hooks for processing ColumnRef and ParamRef nodes, as per my	16 years ago
parse_target.h	Adjust naming of indexes and their columns per recent discussion.	16 years ago
parse_type.h	Make backend header files C++ safe	17 years ago
parse_utilcmd.h	Update copyright for 2009.	17 years ago
parser.h	Remove pg_parse_string_token() --- not needed anymore.	16 years ago
parsetree.h	Re-implement EvalPlanQual processing to improve its performance and eliminate	16 years ago
scanner.h	Re-refactor the core scanner's API, in order to get out from under the problem	16 years ago
scansup.h	Update copyright for 2009.	17 years ago