Fixed issues 2316 and 2318

server/doltgres_handler.go

@@ -288,6 +288,18 @@ func (h *DoltgresHandler) InitSessionParameterDefault(ctx context.Context, c *my
 // convertBindParameters handles the conversion from bind parameters to variable values.
 func (h *DoltgresHandler) convertBindParameters(ctx *sql.Context, types []uint32, formatCodes []int16, values [][]byte) (map[string]sqlparser.Expr, error) {
 	bindings := make(map[string]sqlparser.Expr, len(values))
+	// It's valid to send just one format code that should be used by all values, so we extend the slice in that case
+	if len(formatCodes) > 0 && len(formatCodes) < len(values) {
+		if len(formatCodes) > 1 {
+			return nil, errors.Errorf(`format codes have length "%d" but values have length "%d"`, len(formatCodes), len(values))
+		}
+		formatCode := formatCodes[0]
+		formatCodes = make([]int16, len(values))
+		formatCodes[0] = formatCode
+		for i := 1; i < len(values); i++ {
+			formatCodes[i] = formatCode
+		}
+	}
 	for i := range values {
 		formatCode := int16(0)
 		if formatCodes != nil {
@@ -542,7 +554,8 @@ func schemaToFieldDescriptions(ctx *sql.Context, s sql.Schema, isPrepared bool)
 			typmod = doltgresType.GetAttTypMod() // pg_attribute.atttypmod
 			if isPrepared {
 				switch doltgresType.ID {
-				case pgtypes.Bytea.ID, pgtypes.Int16.ID, pgtypes.Int32.ID, pgtypes.Int64.ID, pgtypes.Uuid.ID:
+				case pgtypes.Bytea.ID, pgtypes.Date.ID, pgtypes.Int16.ID, pgtypes.Int32.ID, pgtypes.Int64.ID,
+					pgtypes.Timestamp.ID, pgtypes.TimestampTZ.ID, pgtypes.Uuid.ID:
 					formatCode = 1
 				}
 			}
@@ -805,6 +818,22 @@ func rowToBytes(ctx *sql.Context, s sql.Schema, row sql.Row, isExecute bool) ([]
 						binary.BigEndian.PutUint16(buf, uint16(v.(int16)))
 						o[i] = buf
 						continue
+					case pgtypes.Timestamp.ID, pgtypes.TimestampTZ.ID:
+						postgresEpoch := time.UnixMilli(946684800000).UTC() // Jan 1, 2000 @ Midnight
+						deltaInMicroseconds := v.(time.Time).UTC().UnixMicro() - postgresEpoch.UnixMicro()
+						buf := make([]byte, 8)
+						binary.BigEndian.PutUint64(buf, uint64(deltaInMicroseconds))
+						o[i] = buf
+						continue
+					case pgtypes.Date.ID:
+						postgresEpoch := time.UnixMilli(946684800000).UTC() // Jan 1, 2000 @ Midnight
+						deltaInMilliseconds := v.(time.Time).UTC().UnixMilli() - postgresEpoch.UnixMilli()
+						buf := make([]byte, 4)
+						const millisecondsPerDay = 86400000
+						days := deltaInMilliseconds / millisecondsPerDay
+						binary.BigEndian.PutUint32(buf, uint32(days))
+						o[i] = buf
+						continue
 					case pgtypes.Uuid.ID:
 						buf, err := v.(uuid.UUID).MarshalBinary()
 						if err != nil {

server/functions/make_timestamp.go

@@ -42,11 +42,7 @@ var make_timestamp = framework.Function6{
 	IsNonDeterministic: true,
 	Strict:             true,
 	Callable: func(ctx *sql.Context, _ [7]*pgtypes.DoltgresType, val1, val2, val3, val4, val5, val6 any) (any, error) {
-		loc, err := GetServerLocation(ctx)
-		if err != nil {
-			return time.Time{}, err
-		}
-		return getTimestampInServerLocation(val1.(int32), val2.(int32), val3.(int32), val4.(int32), val5.(int32), val6.(float64), loc)
+		return getTimestampInServerLocation(val1.(int32), val2.(int32), val3.(int32), val4.(int32), val5.(int32), val6.(float64), time.UTC)
 	},
 }
 

server/functions/to_date.go

@@ -15,6 +15,8 @@
 package functions
 
 import (
+	"time"
+
 	"github.com/dolthub/go-mysql-server/sql"
 
 	"github.com/dolthub/doltgresql/server/functions/framework"
@@ -37,6 +39,8 @@ var to_date_text_text = framework.Function2{
 		format := val2.(string)
 
 		// Parse the date using PostgreSQL format patterns
-		return getDateTimeFromFormat(ctx, input, format)
+		t, err := getDateTimeFromFormat(ctx, input, format)
+		// We return a version of the time but with the timezone completely stripped since they do not use timezones
+		return time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, time.UTC), err
 	},
 }

testing/go/framework.go

@@ -42,6 +42,7 @@ import (
 
 	"github.com/dolthub/doltgresql/core/id"
 	"github.com/dolthub/doltgresql/postgres/parser/duration"
+	"github.com/dolthub/doltgresql/postgres/parser/sem/tree"
 	"github.com/dolthub/doltgresql/postgres/parser/timeofday"
 	"github.com/dolthub/doltgresql/postgres/parser/uuid"
 	dserver "github.com/dolthub/doltgresql/server"
@@ -589,6 +590,20 @@ func NormalizeExpectedRow(fds []pgconn.FieldDescription, rows []sql.Row) []sql.R
 						panic(err)
 					}
 					newRow[i] = ret
+				} else if dt.ID == types.Date.ID {
+					newRow[i] = row[i]
+					if row[i] != nil {
+						if t, _, err := tree.ParseDTimestampTZ(nil, row[i].(string), tree.TimeFamilyPrecisionToRoundDuration(6), time.UTC); err == nil {
+							newRow[i] = functions.FormatDateTimeWithBC(t.Time.UTC(), "2006-01-02", dt.ID == types.TimestampTZ.ID)
+						}
+					}
+				} else if dt.ID == types.Timestamp.ID || dt.ID == types.TimestampTZ.ID {
+					newRow[i] = row[i]
+					if row[i] != nil {
+						if t, _, err := tree.ParseDTimestampTZ(nil, row[i].(string), tree.TimeFamilyPrecisionToRoundDuration(6), time.UTC); err == nil {
+							newRow[i] = functions.FormatDateTimeWithBC(t.Time.UTC(), "2006-01-02 15:04:05.999999", dt.ID == types.TimestampTZ.ID)
+						}
+					}
 				} else {
 					newRow[i] = NormalizeIntsAndFloats(row[i])
 				}
@@ -663,7 +678,7 @@ func NormalizeValToString(dt *types.DoltgresType, v any) any {
 			panic(err)
 		}
 		return val
-	case types.Interval.ID, types.Uuid.ID, types.Date.ID, types.Time.ID, types.Timestamp.ID:
+	case types.Interval.ID, types.Time.ID, types.Uuid.ID:
 		// These values need to be normalized into the appropriate types
 		// before being converted to string type using the Doltgres
 		// IoOutput method.
@@ -675,12 +690,16 @@ func NormalizeValToString(dt *types.DoltgresType, v any) any {
 			panic(err)
 		}
 		return tVal
-	case types.TimestampTZ.ID:
+	case types.Date.ID:
+		if v == nil {
+			return nil
+		}
+		return functions.FormatDateTimeWithBC(v.(time.Time), "2006-01-02", false)
+	case types.Timestamp.ID, types.TimestampTZ.ID:
 		if v == nil {
 			return nil
 		}
-		// timestamptz returns a value in server timezone
-		return functions.FormatDateTimeWithBC(v.(time.Time), "2006-01-02 15:04:05.999999", true)
+		return functions.FormatDateTimeWithBC(v.(time.Time).UTC(), "2006-01-02 15:04:05.999999", dt.ID == types.TimestampTZ.ID)
 	}
 
 	switch val := v.(type) {

testing/postgres-client-tests/postgres-client-tests.bats

@@ -103,5 +103,5 @@ teardown() {
 
 @test "rust sqlx" {
     cd $BATS_TEST_DIRNAME/rust
-    cargo run -- $USER $PORT
+    RUSTFLAGS=-Awarnings cargo run -- $USER $PORT
 }

testing/postgres-client-tests/rust/Cargo.toml

@@ -5,4 +5,4 @@ edition = "2024"
 
 [dependencies]
 tokio = { version = "1", features = ["macros", "rt-multi-thread"] }
-sqlx = { version = "0.8", features = ["runtime-tokio", "postgres", "tls-native-tls"] }
+sqlx = { version = "0.8", features = ["runtime-tokio", "postgres", "tls-native-tls", "uuid", "chrono"] }

testing/postgres-client-tests/rust/src/main.rs

@@ -1,4 +1,15 @@
 use sqlx::postgres::PgPoolOptions;
+use sqlx::types::Uuid;
+use sqlx::types::chrono::Utc;
+use sqlx::types::chrono::DateTime;
+use sqlx::types::chrono::NaiveDate;
+
+#[derive(sqlx::FromRow)]
+struct Event {
+	id: sqlx::types::Uuid,
+	created_at: DateTime<Utc>,
+	event_date: Option<NaiveDate>,
+}
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
@@ -15,12 +26,50 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 		.max_connections(5)
 		.connect(&database_url)
 		.await?;
-	let exists: bool = sqlx::query_scalar(
-		"SELECT EXISTS(SELECT 1 FROM pg_catalog.pg_tables WHERE tablename = $1);"
-	)
-	.bind("test_table")
-	.fetch_one(&pool)
-	.await?;
+
+	let exists: bool = sqlx::query_scalar("SELECT EXISTS(SELECT 1 FROM pg_catalog.pg_tables WHERE tablename = $1);")
+		.bind("test_table")
+		.fetch_one(&pool)
+		.await?;
 	println!("exists={exists}");
+
+	sqlx::query("DROP TABLE IF EXISTS users, events;")
+		.execute(&pool)
+		.await?;
+
+	sqlx::query("CREATE TABLE users (id uuid default gen_random_uuid(), name text, email text);")
+		.execute(&pool)
+		.await?;
+
+	sqlx::query("INSERT INTO users (name, email) VALUES ($1, $2)")
+		.bind("Alice")
+		.bind("alice@example.com")
+		.execute(&pool)
+		.await?;
+
+	let some_uuid: Uuid = sqlx::query_scalar("SELECT id FROM users WHERE email = $1 LIMIT 1")
+		.bind("alice@example.com")
+		.fetch_one(&pool)
+		.await?;
+
+	sqlx::query("UPDATE users SET name = $1 WHERE id = $2")
+		.bind("Bob")
+		.bind(some_uuid)
+		.execute(&pool)
+		.await?;
+
+	sqlx::query("CREATE TABLE events (id UUID PRIMARY KEY, created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(), event_date DATE);")
+		.execute(&pool)
+		.await?;
+
+	let some_id: Uuid = sqlx::query_scalar("INSERT INTO events (id, event_date) VALUES (gen_random_uuid(), '2026-02-12') RETURNING id;")
+		.fetch_one(&pool)
+		.await?;
+
+	let __event = sqlx::query_as::<_, Event>("SELECT * FROM events WHERE id = $1")
+		.bind(some_id)
+		.fetch_one(&pool)
+		.await?;
+
 	Ok(())
 }