Обсуждение: pgsql: Speed up lexing of long JSON strings
Speed up lexing of long JSON strings Use optimized linear search when looking ahead for end quotes, backslashes, and non-printable characters. This results in nearly 40% faster JSON parsing on x86-64 when most values are long strings, and all platforms should see some improvement. Reviewed by Andres Freund and Nathan Bossart Discussion: https://www.postgresql.org/message-id/CAFBsxsGhaR2KQ5eisaK%3D6Vm60t%3DaxhD8Ckj1qFoCH1pktZi%2B2w%40mail.gmail.com Discussion: https://www.postgresql.org/message-id/CAFBsxsESLUyJ5spfOSyPrOvKUEYYNqsBosue9SV1j8ecgNXSKA%40mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/0a8de93a48ce1e7479fb75fe10a8859559ec0c09 Modified Files -------------- src/common/jsonapi.c | 13 ++++++++++--- src/test/regress/expected/json.out | 13 +++++++++++++ src/test/regress/sql/json.sql | 5 +++++ 3 files changed, 28 insertions(+), 3 deletions(-)