Hi! I've changed limits of the length option in the "Introduction" section. 
They should be 1 ≤ colN ≤ 2048 instead of 1 < colN < 2048 (I've talk with the 
author about it)

I've also added minimal maximum and default values for description of options 
in the "Parameters" section, because I think user should be able to see full 
description of the options in the section where they are described, not in the 

Nikolay Shaplov
Postgres Professional: http://www.postgrespro.com
Russian Postgres Company
diff --git a/doc/src/sgml/bloom.sgml b/doc/src/sgml/bloom.sgml
index 49cb066..36ddc39 100644
--- a/doc/src/sgml/bloom.sgml
+++ b/doc/src/sgml/bloom.sgml
@@ -23,7 +23,7 @@
    Since a signature is a lossy representation of all indexed attributes,
    search results must be rechecked using heap information.
    The user can specify signature length (in uint16, default is 5) and the
-   number of bits, which can be set per attribute (1 < colN < 2048).
+   number of bits, which can be set per attribute (1 &le; colN &le; 2048).
@@ -51,7 +51,8 @@
-      Length of signature in uint16 type values
+      Number of uint16 units in signature, e. g. default value length = 5
+      defines 80-bit signature. Allowed values for length are from 1 to 256.
@@ -61,7 +62,8 @@
     <term><literal>col1 &mdash; col16</></term>
-      Number of bits for corresponding column
+      Number of bits for corresponding column. Allowed values are from 1
+      to 2048, but not greater than length*16. Default value is 2.
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