CREATE STATISTICS - 多列
Recorded source states and original language descriptions. Missing version evidence stays unknown.
The source snapshot records transitions for PostgreSQL 8.1–18. The historical matrix records independent cells for 7.4–18. Neither records support for PostgreSQL 19 or 20; newer versions remain unknown. These source claims are distinct from runtime measurements.
No translation of this description is recorded. The original Chinese description is shown. The source label is retained in Chinese; no translated label is recorded.
性能
Description
CREATE STATISTICS 提供了收集多列统计信息的能力，优化器可以使用这些信息生成更好的查询计划。
https://www.postgresql.org/docs/current/sql-createstatistics.html
Selected version: PostgreSQL 18
No
Compare versions
Original documentation links
Related source snapshot entry · The original source supplies this relationship; each matrix retains its own states.
Complete source facts and provenance
legacy · center · 975822fe4860130cc0ab2777007ddd40d7bdce0d39e0009dcfa4882e81ce7332
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