The test suite for the Go PostgreSQL driver pgx
(https://github.com/jackc/pgx) found an unexpected behavior change in
PG10. Previously, it was impossible to prepare a statement with a
unknown or ambiguous parameter type.
Pre-version 10:
jack=# prepare ps as select $1;
ERROR: could not determine data type of parameter $1
But on PG10 the type defaults to text:
jack=# prepare ps as select $1;
PREPARE
Time: 0.183 ms
jack=# execute ps('Hello, there');
?column?
--------------
Hello, there
(1 row)
Time: 0.437 ms
I looked through the git log and couldn't find any commits referencing
this. Is this an intended behavior change?
Jack
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