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From: PG Doc comments form <[email protected]>
To: [email protected]
Cc: [email protected]
Subject: Typo in DATATYPE-JSONPATH
Date: Thu, 15 Apr 2021 20:04:24 +0000
Message-ID: <[email protected]> (raw)

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/13/datatype-json.html
Description:

Hello,

On the DATATYPE-JSONPATH page:
https://www.postgresql.org/docs/13/datatype-json.html#DATATYPE-JSONPATH

There is a line that shows that GIN indexes support `@@` and `@?` operators
for json matching, then there are two examples trying to show both
operators. However both examples use the `@@` operator.

Examples from the doc:

SELECT jdoc->'guid', jdoc->'name' FROM api WHERE jdoc @@ '$.tags[*] ==
"qui"';
SELECT jdoc->'guid', jdoc->'name' FROM api WHERE jdoc @@ '$.tags[*] ? (@ ==
"qui")';

I think the second example should be using the `@?` operator so that both
sample queries do the same thing but with the different operator types. So
the second example should read:

SELECT jdoc->'guid', jdoc->'name' FROM api WHERE jdoc @? '$.tags[*] ? (@ ==
"qui")';

Thank you,
Ben

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