ts_rank_cd

Computes a score showing how well the vector matches the query, using a cover density algorithm. See Section 12.3.3 for details.

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group: textsearch
group label: 文本搜索函数和操作符
lang: en
layout: table-new
pages: functions-textsearch.html
prose only: false

Definition PG 18

Computes a score showing how well the vector matches the query, using a cover density algorithm. See Section 12.3.3 for details.

Signatures and overloads

ts_rank_cd ( [weights real[], ] vector tsvector, query tsquery [, normalization integer] ) → real → real

Computes a score showing how well the vector matches the query, using a cover density algorithm. See Section 12.3.3 for details.

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Complete source facts

documentation revision

{"inputs":[{"file":"functions-textsearch.html","kind":"same-version-reviewed-manual","locale":"en","sha256":"2383d74fd6eee4b71e1b97dec9754623081103120b67a9793f8deac5fff77727","version":"18.7"},{"file":"functions-textsearch.html","kind":"same-version-reviewed-manual","locale":"zh-Hans","sha256":"d8d1661c6d67bb109c5266be16236950471c11d91181aafa96e9055792c4fa78","version":"18.7"}],"release":"18.7","runtime_remeasured":false,"source_revision":"pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552"}

Source references

Original manual reference

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:c0e4589b113df08dc1f380183366125a6d7e651f977e5981e3f87481ad9316f6

Text language: en · wiki-repair-20261023:c0e4589b113df08dc1f380183366125a6d7e651f977e5981e3f87481ad9316f6