postgres

Commit Graph

Author	SHA1	Message	Date
Neil Conway	484f0464ff	Implement max() and min() aggregates for array types. Patch from Koju Iijima, reviewed by Neil Conway. Catalog version number bumped, regression tests updated.	21 years ago
Joe Conway	f900af7961	Further tightening of the array literal parser. Prevent junk from being accepted after the outer right brace. Per report from Markus Bertheau. Also add regression test cases for this change, and for previous recent array literal parser changes.	22 years ago
Tom Lane	7e64dbc6b5	Support assignment to subfields of composite columns in UPDATE and INSERT. As a side effect, cause subscripts in INSERT targetlists to do something more or less sensible; previously we evaluated such subscripts and then effectively ignored them. Another side effect is that UPDATE-ing an element or slice of an array value that is NULL now produces a non-null result, namely an array containing just the assigned-to positions.	22 years ago
Bruce Momjian	0969dc867b	Allow LIKE/ILIKE to appear in more places in a query. Fabien COELHO	22 years ago
Tom Lane	e945246321	Fix ARRAY[] construct so that in multidimensional case, elements can be anything yielding an array of the proper kind, not only sub-ARRAY[] constructs; do subscript checking at runtime not parse time. Also, adjust array_cat to make array \|\| array comply with the SQL99 spec. Joe Conway	23 years ago
Tom Lane	bee217924d	Support expressions of the form 'scalar op ANY (array)' and 'scalar op ALL (array)', where the operator is applied between the lefthand scalar and each element of the array. The operator must yield boolean; the result of the construct is the OR or AND of the per-element results, respectively. Original coding by Joe Conway, after an idea of Peter's. Rewritten by Tom to keep the implementation strictly separate from subqueries.	23 years ago
Tom Lane	b3c0551eda	Create real array comparison functions (that use the element datatype's comparison functions), replacing the highly bogus bitwise array_eq. Create a btree index opclass for ANYARRAY --- it is now possible to create indexes on array columns. Arrange to cache the results of catalog lookups across multiple array operations, instead of repeating the lookups on every call. Add string_to_array and array_to_string functions. Remove singleton_array, array_accum, array_assign, and array_subscript functions, since these were for proof-of-concept and not intended to become supported functions. Minor adjustments to behavior in some corner cases with empty or zero-dimensional arrays. Joe Conway (with some editorializing by Tom Lane).	23 years ago
Bruce Momjian	111d8e522b	Back out array mega-patch. Joe Conway	23 years ago
Bruce Momjian	46bf651480	Array mega-patch. Joe Conway	23 years ago
Tom Lane	730840c9b6	First phase of work on array improvements. ARRAY[x,y,z] constructor expressions, ARRAY(sub-SELECT) expressions, some array functions. Polymorphic functions using ANYARRAY/ANYELEMENT argument and return types. Some regression tests in place, documentation is lacking. Joe Conway, with some kibitzing from Tom Lane.	23 years ago
Bruce Momjian	73b94657b0	Throw error on pg_atoi(''), regression adjustments.	24 years ago
Peter Eisentraut	5546ec289b	Make char(n) and varchar(n) types raise an error if the inserted string is too long. While I was adjusting the regression tests I moved the array things all into array.sql, to make things more manageable.	25 years ago
Tom Lane	e4e6459c0f	Further cleanup of array behavior. Slice assignments to arrays with varlena elements work now. Allow assignment to previously-nonexistent subscript position to extend array, but only for 1-D arrays and only if adjacent to existing positions (could do more if we had a way to represent nulls in arrays, but I don't want to tackle that now). Arrange for assignment of NULL to an array element in UPDATE to be a no-op, rather than setting the entire array to NULL as it used to. (Throwing an error would be a reasonable alternative, but it's never done that...) Update regress test accordingly.	26 years ago
Tom Lane	6ce5e0abb6	Update arrays regress test to reflect fact that several things work now that did not work in 6.5.	26 years ago
Thomas G. Lockhart	c0cab6f4fa	Update format to add uniform headers on files.	26 years ago
Bruce Momjian	0d203b745d	Re-apply Darren's char2-16 removal code.	28 years ago
Bruce Momjian	db21523314	Back out char2-char16 removal. Add later.	28 years ago
Bruce Momjian	57b5966405	The following uuencoded, gzip'd file will ... 1. Remove the char2, char4, char8 and char16 types from postgresql 2. Change references of char16 to name in the regression tests. 3. Rename the char16.sql regression test to name.sql. 4. Modify the regression test scripts and outputs to match up. Might require new regression.{SYSTEM} files... Darren King	28 years ago
Marc G. Fournier	a426ff583d	There, I'll leave this alone until Thomas catchs up grin	29 years ago

19 Commits (484f0464ff4aa5a5fccc1d4e3c0d3518a8f01068)