| From: | jian he <jian(dot)universality(at)gmail(dot)com> |
|---|---|
| To: | Amit Langote <amitlangote09(at)gmail(dot)com> |
| Cc: | Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Erik Rijkers <er(at)xs4all(dot)nl>, Andres Freund <andres(at)anarazel(dot)de>, Andrew Dunstan <andrew(at)dunslane(dot)net>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: remaining sql/json patches |
| Date: | 2024-03-07 05:16:49 |
| Message-ID: | CACJufxHwNWRNJG26HdgrFNo4M5bd=2-36qpy_bYE-JrCrJmaHQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
two cosmetic minor issues.
+/*
+ * JsonCoercion
+ * Information about coercing a SQL/JSON value to the specified
+ * type at runtime
+ *
+ * A node of this type is created if the parser cannot find a cast expression
+ * using coerce_type() or OMIT QUOTES is specified for JSON_QUERY. If the
+ * latter, 'expr' may contain the cast expression; if not, the quote-stripped
+ * scalar string will be coerced by calling the target type's input function.
+ * See ExecEvalJsonCoercion.
+ */
+typedef struct JsonCoercion
+{
+ NodeTag type;
+
+ Oid targettype;
+ int32 targettypmod;
+ bool omit_quotes; /* OMIT QUOTES specified for JSON_QUERY? */
+ Node *cast_expr; /* coercion cast expression or NULL */
+ Oid collation;
+} JsonCoercion;
comment: 'expr' may contain the cast expression;
here "exr" should be "cast_expr"?
"a SQL/JSON" should be " an SQL/JSON"?
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