Remove useless picksplit-doesn't-support-secondary-split log spam.
This LOG message was put in over five years ago with the evident expectation that we'd make all GiST opclasses support secondary split directly. However, no such thing ever happened, and indeed the number of opclasses supporting it decreased to zero in 9.2. The reason is that improving on the default implementation isn't that easy --- the opclass-specific code that did exist, before 9.2, doesn't appear to have been any improvement over the default. Hence, remove the message altogether. There's certainly no point in nagging users about this in released branches, but I doubt that we'll ever implement complete opclass-specific support anyway.
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@ -458,11 +458,6 @@ gistUserPicksplit(Relation r, GistEntryVector *entryvec, int attno, GistSplitVec
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/* Do a generic split */
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genericPickSplit(giststate, entryvec, sv, attno);
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/* Clean up if we're in a secondary split */
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if (sv->spl_ldatum_exists || sv->spl_rdatum_exists)
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supportSecondarySplit(r, giststate, attno, sv,
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v->spl_lattr[attno], v->spl_rattr[attno]);
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}
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else
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{
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@ -471,18 +466,13 @@ gistUserPicksplit(Relation r, GistEntryVector *entryvec, int attno, GistSplitVec
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sv->spl_left[sv->spl_nleft - 1] = (OffsetNumber) (entryvec->n - 1);
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if (sv->spl_right[sv->spl_nright - 1] == InvalidOffsetNumber)
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sv->spl_right[sv->spl_nright - 1] = (OffsetNumber) (entryvec->n - 1);
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/* Clean up if we're in a secondary split */
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if (sv->spl_ldatum_exists || sv->spl_rdatum_exists)
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{
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elog(LOG, "picksplit method for column %d of index \"%s\" doesn't support secondary split",
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attno + 1, RelationGetRelationName(r));
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supportSecondarySplit(r, giststate, attno, sv,
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v->spl_lattr[attno], v->spl_rattr[attno]);
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}
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}
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/* Clean up if PickSplit didn't take care of a secondary split */
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if (sv->spl_ldatum_exists || sv->spl_rdatum_exists)
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supportSecondarySplit(r, giststate, attno, sv,
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v->spl_lattr[attno], v->spl_rattr[attno]);
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/* emit union datums computed by PickSplit back to v arrays */
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v->spl_lattr[attno] = sv->spl_ldatum;
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v->spl_rattr[attno] = sv->spl_rdatum;
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