Hi,
Please consider these small patches for REL_12_STABLE that mainly fix
remaining typos and some tagging issues. The jsonpath-related one also
improves some wordings, e.g. there seems to be no need to separate Boolean
operators with spaces in path definitions.
--
Best regards,
Liudmila Mantrova
Technical writer at Postgres Professional: http://www.postgrespro.com
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 0d6d883dbf..829ad07a90 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -11544,7 +11544,7 @@ table2-mapping
JSON query functions and operators
pass the provided path expression to the path engine
- for evaluation. If the expression matches the JSON data to be queried,
+ for evaluation. If the expression matches the queried JSON data,
the corresponding SQL/JSON item is returned.
Path expressions are written in the SQL/JSON path language
and can also include arithmetic expressions and functions.
@@ -11604,7 +11604,7 @@ table2-mapping
If the item to retrieve is an element of an array, you have
- to unnest this array using the [*] operator. For example,
+ to unnest this array using the [*] operator. For example,
the following path will return location coordinates for all
the available track segments:
@@ -11625,8 +11625,7 @@ table2-mapping
The result of each path evaluation step can be processed
by one or more jsonpath operators and methods
listed in .
- Each method must be preceded by a dot, while arithmetic and Boolean
- operators are separated from the operands by spaces. For example,
+ Each method name must be preceded by a dot. For example,
you can get an array size:
'$.track.segments.size()'
@@ -11907,7 +11906,7 @@ table2-mapping
double()
-Approximate numeric value converted from a string
+Approximate floating-point number converted from an SQL/JSON number or a string
{"len": "1.9"}
$.len.double() * 2
3.8
@@ -11936,10 +11935,10 @@ table2-mapping
keyvalue()
- Sequence of object's key-value pairs represented as array of objects
+ Sequence of object's key-value pairs represented as array of items
containing three fields ("key",
"value", and "id").
- "id" is an unique identifier of the object
+ "id" is a unique identifier of the object
key-value pair belongs to.
{"x": "20", "y": 32}
@@ -12061,9 +12060,9 @@ table2-mapping
like_regex
Tests pattern matching with POSIX regular expressions
- (). Supported flags
+ (see ). Supported flags
are i, s, m,
- x and q.
+ x, and q.
["abc", "abd", "aBdC", "abdacb", "babc"]
$[*] ? (@ like_regex "^ab.*c" flag "i")
"abc", "aBdC", "abdacb"
@@ -12077,7 +12076,7 @@ table2-mapping
exists
-Tests whether a path expression has at least one SQL/JSON item
+Tests whether a path expression matches at least one SQL/JSON item
{"x": [1, 2], "y": [2, 4]}
strict $.* ? (exists (@ ? (@[*] > 2)))
2, 4
@@ -12302,10 +12301,9 @@ table2-mapping
@@
jsonpath
-JSON path predicate check result for the specified JSON value.
-Only first result item is taken into account. If there are no results
-or the first result item is not Boolean, then null
-is returned.
+Returns the result of JSON path predicate check for the specified JSON value.
+Only the first item of the result is taken into account. If the
+result is not Boolean, then null is returned.
'{"a":[1,2,3,4,5]}'::jsonb @@ '$.a[*] > 2'
@@ -12943,7 +12941,7 @@ table2-mapping
- jsonb_path_exists(target jsonb, path jsonpath [, vars jsonb, silent bool])
+ jsonb_path_exists(target jsonb, path jsonpath [, vars jsonb [, silent bool]])
boolean
@@ -12968,10 +12966,9 @@ table2-mapping
boolean
- Returns JSON path predicate result for the specified JSON value.
- Only first result item is taken into account. If there are no results
- or the first result item is not Boolean, then null
- is returned.
+ Returns the result of JSON path predicate check for the specified JSON value.
+ Only the first item of the result is taken into account. If the
+ result is not Boolean, then null is returned.
@@ -13178,18 +13175,18 @@ table2-mapping
The jsonb_path_exists, jsonb_path_match,
-jsonb_path_query, jsonb_path_query_array and
+jsonb_path_query, jsonb_path_query_array, and
jsonb_path_query_first
functions have optional vars and silent
arguments.
