diff options
| author | Stephen Frost | 2014-09-12 01:23:51 +0000 |
|---|---|---|
| committer | Stephen Frost | 2014-09-12 01:23:51 +0000 |
| commit | 95d737ff45a38809130a2c633d9e6bc26c825036 (patch) | |
| tree | d3d2c052b1def80edd36fa9751a793eca4a3e0e0 /doc/src | |
| parent | c3c75fcd7a03067d87b830e98e3698b683446762 (diff) | |
Add 'ignore_nulls' option to row_to_json
Provide an option to skip NULL values in a row when generating a JSON
object from that row with row_to_json. This can reduce the size of the
JSON object in cases where columns are NULL without really reducing the
information in the JSON object.
This also makes row_to_json into a single function with default values,
rather than having multiple functions. In passing, change array_to_json
to also be a single function with default values (we don't add an
'ignore_nulls' option yet- it's not clear that there is a sensible
use-case there, and it hasn't been asked for in any case).
Pavel Stehule
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/func.sgml | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml index 3a7cfa93c27..7195df85ff5 100644 --- a/doc/src/sgml/func.sgml +++ b/doc/src/sgml/func.sgml @@ -10309,11 +10309,13 @@ table2-mapping </row> <row> <entry> - <literal>row_to_json(record [, pretty_bool])</literal> + <literal>row_to_json(rowval record [, pretty bool [, ignore_nulls bool] ])</literal> </entry> <entry> Returns the row as a JSON object. Line feeds will be added between - level-1 elements if <parameter>pretty_bool</parameter> is true. + level-1 elements if <parameter>pretty_bool</parameter> is true. Elements + with NULL values will be skipped when <parameter>ignore_nulls</parameter> + is true. </entry> <entry><literal>row_to_json(row(1,'foo'))</literal></entry> <entry><literal>{"f1":1,"f2":"foo"}</literal></entry> |