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Make a code-cleanup pass over the collations patch.

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This patch is almost entirely cosmetic --- mostly cleaning up a lot of
neglected comments, and fixing code layout problems in places where the
patch made lines too long and then pgindent did weird things with that.
I did find a bug-of-omission in equalTupleDescs().
This commit is contained in:
Tom Lane
2011-04-22 17:43:18 -04:00
parent 0cfdc1c657
commit 9e9b9ac7d1
24 changed files with 179 additions and 118 deletions
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8
src/backend/executor/nodeMergejoin.c
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@ -170,13 +170,13 @@ typedef enum
* the two expressions from the original clause.
*
* In addition to the expressions themselves, the planner passes the btree
* opfamily OID, btree strategy number (BTLessStrategyNumber or
* opfamily OID, collation OID, btree strategy number (BTLessStrategyNumber or
* BTGreaterStrategyNumber), and nulls-first flag that identify the intended
* sort ordering for each merge key. The mergejoinable operator is an
* equality operator in this opfamily, and the two inputs are guaranteed to be
* equality operator in the opfamily, and the two inputs are guaranteed to be
* ordered in either increasing or decreasing (respectively) order according
* to this opfamily, with nulls at the indicated end of the range. This
* allows us to obtain the needed comparison function from the opfamily.
* to the opfamily and collation, with nulls at the indicated end of the range.
* This allows us to obtain the needed comparison function from the opfamily.
*/
static MergeJoinClause
MJExamineQuals(List *mergeclauses,