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authorTom Lane <tgl@sss.pgh.pa.us>2008-07-14 00:51:46 +0000
committerTom Lane <tgl@sss.pgh.pa.us>2008-07-14 00:51:46 +0000
commit6f6d8632583353d60fe3bb1694b39f6124f6e5d1 (patch)
treefcd0a2eee9e7a5efbb17ab6312d4da2a96bfefd2 /src/bin/scripts/createlang.c
parent6816577a786cd9be257f6600e3cde2d86f5adb46 (diff)
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Create a type-specific typanalyze routine for tsvector, which collects stats
on the most common individual lexemes in place of the mostly-useless default behavior of counting duplicate tsvectors. Future work: create selectivity estimation functions that actually do something with these stats. (Some other things we ought to look at doing: using the Lossy Counting algorithm in compute_minimal_stats, and using the element-counting idea for stats on regular arrays.) Jan Urbanski
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