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Diffstat (limited to 'doc/src/sgml/ltree.sgml')
| -rw-r--r-- | doc/src/sgml/ltree.sgml | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/doc/src/sgml/ltree.sgml b/doc/src/sgml/ltree.sgml index bb66e33944..00a6ae70da 100644 --- a/doc/src/sgml/ltree.sgml +++ b/doc/src/sgml/ltree.sgml @@ -637,7 +637,8 @@ Europe & Russia*@ & !Transportation path labels as a bitmap signature. Its optional integer parameter <literal>siglen</literal> determines the signature length in bytes. The default signature length is 8 bytes. - Valid values of signature length are between 1 and 2024 bytes. Longer + The length must be a positive multiple of <type>int</type> alignment + (4 bytes on most machines)) up to 2024. Longer signatures lead to a more precise search (scanning a smaller fraction of the index and fewer heap pages), at the cost of a larger index. </para> |