6 Commits (7df2c1f8daeb361133ac8bdeaf59ceb0484e315a)

Author	SHA1	Message	Date
Tom Lane	4431758229	Support ORDER BY ... NULLS FIRST/LAST, and add ASC/DESC/NULLS FIRST/NULLS LAST ... per-column options for btree indexes. The planner's support for this is still pretty rudimentary; it does not yet know how to plan mergejoins with nondefault ordering options. The documentation is pretty rudimentary, too. I'll work on improving that stuff later. Note incompatible change from prior behavior: ORDER BY ... USING will now be rejected if the operator is not a less-than or greater-than member of some btree opclass. This prevents less-than-sane behavior if an operator that doesn't actually define a proper sort ordering is selected.	19 years ago
Tom Lane	ec646dbc65	Create a 'type cache' that keeps track of the data needed for any particular ... datatype by array_eq and array_cmp; use this to solve problems with memory leaks in array indexing support. The parser's equality_oper and ordering_oper routines also use the cache. Change the operator search algorithms to look for appropriate btree or hash index opclasses, instead of assuming operators named '<' or '=' have the right semantics. (ORDER BY ASC/DESC now also look at opclasses, instead of assuming '<' and '>' are the right things.) Add several more index opclasses so that there is no regression in functionality for base datatypes. initdb forced due to catalog additions.	23 years ago
Tom Lane	337f73b1bb	Revise geometry regression testing to eliminate most cross-platform ... variation. To do this, set extra_float_digits to -3 in the geometry test, and tweak the CIRCLE_TBL dataset to avoid values that suffer from severe cancellation error (eg, circles that just touch an axis). We still need two geometry 'expected' files to account for the difference between platforms that display minus zero as '-0' and those that just say '0', but with luck that's all we'll need.	23 years ago
Thomas G. Lockhart	4c4e68dccc	Clean up format of tests. ... Remove older "::" type coersion syntax in favor of extended SQL92 style. Include a few new tests for datetime/timespan arithmetic.	26 years ago
Thomas G. Lockhart	3d5dd9bdd9	Start adding tests for new geometry functions. ... Not all cleaned up yet.	29 years ago
Thomas G. Lockhart	83b8cf5b6b	Add inter-type regression tests for geometry, date/time, and numbers. ... Add regression tests for circles, line segments, and paths. Modify regression tests to allow GEQ optimizer (order results).	29 years ago