| From: | Jim Nasby <Jim(dot)Nasby(at)BlueTreble(dot)com> |
|---|---|
| To: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
| Cc: | Petr Jelinek <petr(at)2ndquadrant(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, Robert Haas <robertmhaas(at)gmail(dot)com> |
| Subject: | Re: proposal: searching in array function - array_position |
| Date: | 2015-03-11 21:50:09 |
| Message-ID: | 5500B891.8070706@BlueTreble.com |
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| Thread: | |
| Lists: | pgsql-hackers |
On 3/11/15 4:37 PM, Pavel Stehule wrote:
+ /*
+ * array_offset - returns the offset of a value in an array
(array_offset and
+ * array_offset_start are wrappers for safe call (look on opr_sanity
test) a
+ * array_offset_common function.
+ *
+ * Returns NULL when value is not found. It uses a "NOT DISTINCT FROM"
operator
+ * for comparation to be safe against NULL.
+ */
would be better as...
+ /*
+ * array_offset - returns the offset of a value in an array.
array_offset and
+ * array_offset_start are wrappers for the sake of the opr_sanity test.
+ *
+ * Returns NULL when value is not found. It uses a "NOT DISTINCT FROM"
operator
+ * for comparation to be safe against NULL.
+ */
--
Jim Nasby, Data Architect, Blue Treble Consulting
Data in Trouble? Get it in Treble! http://BlueTreble.com
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