enable ya make for go projects

1 files changed, 57 insertions, 0 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
new file mode 100644
index 0000000000..e1bdcba574
--- /dev/null
+++ b/vendor/github.com/jackc/pgx/v5/internal/stmtcache/stmtcache.go
@@ -0,0 +1,57 @@
+// Package stmtcache is a cache for statement descriptions.
+package stmtcache
+
+import (
+	"strconv"
+	"sync/atomic"
+
+	"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)
+}
+
+// Cache caches statement descriptions.
+type Cache interface {
+	// Get returns the statement description for sql. Returns nil if not found.
+	Get(sql string) *pgconn.StatementDescription
+
+	// Put stores sd in the cache. Put panics if sd.SQL is "". Put does nothing if sd.SQL already exists in the cache.
+	Put(sd *pgconn.StatementDescription)
+
+	// Invalidate invalidates statement description identified by sql. Does nothing if not found.
+	Invalidate(sql string)
+
+	// InvalidateAll invalidates all statement descriptions.
+	InvalidateAll()
+
+	// HandleInvalidated returns a slice of all statement descriptions invalidated since the last call to HandleInvalidated.
+	HandleInvalidated() []*pgconn.StatementDescription
+
+	// Len returns the number of cached prepared statement descriptions.
+	Len() int
+
+	// 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
+}