diff options
Diffstat (limited to 'vendor/github.com/jackc/pgx/v5/internal/stmtcache/stmtcache.go')
| -rw-r--r-- | vendor/github.com/jackc/pgx/v5/internal/stmtcache/stmtcache.go | 31 |
1 files changed, 7 insertions, 24 deletions
diff --git a/vendor/github.com/jackc/pgx/v5/internal/stmtcache/stmtcache.go b/vendor/github.com/jackc/pgx/v5/internal/stmtcache/stmtcache.go index e1bdcba57..b2940e230 100644 --- a/vendor/github.com/jackc/pgx/v5/internal/stmtcache/stmtcache.go +++ b/vendor/github.com/jackc/pgx/v5/internal/stmtcache/stmtcache.go @@ -2,18 +2,17 @@ package stmtcache import ( - "strconv" - "sync/atomic" + "crypto/sha256" + "encoding/hex" "github.com/jackc/pgx/v5/pgconn" ) -var stmtCounter int64 - -// NextStatementName returns a statement name that will be unique for the lifetime of the program. -func NextStatementName() string { - n := atomic.AddInt64(&stmtCounter, 1) - return "stmtcache_" + strconv.FormatInt(n, 10) +// StatementName returns a statement name that will be stable for sql across multiple connections and program +// executions. +func StatementName(sql string) string { + digest := sha256.Sum256([]byte(sql)) + return "stmtcache_" + hex.EncodeToString(digest[0:24]) } // Cache caches statement descriptions. @@ -39,19 +38,3 @@ type Cache interface { // Cap returns the maximum number of cached prepared statement descriptions. Cap() int } - -func IsStatementInvalid(err error) bool { - pgErr, ok := err.(*pgconn.PgError) - if !ok { - return false - } - - // https://github.com/jackc/pgx/issues/1162 - // - // We used to look for the message "cached plan must not change result type". However, that message can be localized. - // Unfortunately, error code "0A000" - "FEATURE NOT SUPPORTED" is used for many different errors and the only way to - // tell the difference is by the message. But all that happens is we clear a statement that we otherwise wouldn't - // have so it should be safe. - possibleInvalidCachedPlanError := pgErr.Code == "0A000" - return possibleInvalidCachedPlanError -} |