mirror/postgresql
2
0
Fork 0
mirror of https://git.postgresql.org/git/postgresql.git synced 2025-02-23 19:39:53 +08:00
Code Issues Packages Projects Releases Wiki Activity

Clarify that the --enable-integer-datetimes switch affects the time and

Browse Source 
interval datatypes as well as timestamp.
This commit is contained in:
Tom Lane 2005-01-17 18:47:15 +00:00
parent be105bd789
commit 0f6be37fcb
1 changed files with 9 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
doc/src/sgml/datatype.sgml
View File

@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.153 2005/01/08 05:19:18 tgl Exp $
$PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.154 2005/01/17 18:47:15 tgl Exp $
-->
<chapter id="datatype">
@ -1351,7 +1351,7 @@ SELECT b, char_length(b) FROM test2;
<entry>time intervals</entry>
<entry>-178000000 years</entry>
<entry>178000000 years</entry>
<entry>1 microsecond</entry>
<entry>1 microsecond / 14 digits</entry>
</row>
<row>
<entry><type>date</type></entry>
@ -1367,7 +1367,7 @@ SELECT b, char_length(b) FROM test2;
<entry>times of day only</entry>
<entry>00:00:00.00</entry>
<entry>23:59:59.99</entry>
<entry>1 microsecond</entry>
<entry>1 microsecond / 14 digits</entry>
</row>
<row>
<entry><type>time [ (<replaceable>p</replaceable>) ] with time zone</type></entry>
@ -1375,7 +1375,7 @@ SELECT b, char_length(b) FROM test2;
<entry>times of day only, with time zone</entry>
<entry>00:00:00.00+12</entry>
<entry>23:59:59.99-12</entry>
<entry>1 microsecond</entry>
<entry>1 microsecond / 14 digits</entry>
</row>
</tbody>
</tgroup>
@ -1410,7 +1410,11 @@ SELECT b, char_length(b) FROM test2;
eight-byte integers (a compile-time
option), microsecond precision is available over the full range of
values. However eight-byte integer timestamps have a more limited range of
dates than shown above: from 4713 BC up to 294276 AD.
dates than shown above: from 4713 BC up to 294276 AD. The same
compile-time option also determines whether <type>time</type> and
<type>interval</type> values are stored as floating-point or eight-byte
integers. In the floating-point case, large <type>interval</type> values
degrade in precision as the size of the interval increases.
</para>
</note>