From bb2c805cac3ca952086476a8e8b86b0d0778aff4 Mon Sep 17 00:00:00 2001
From: pokeeffe-molecula <85502298+pokeeffe-molecula@users.noreply.github.com>
Date: Wed, 14 Dec 2022 17:53:17 -0600
Subject: [PATCH] handling missing epoch constraint correctly (#2366)

(cherry picked from commit 843312dfc9f1307376ce53d13b8479bc775c17a2)
---
 sql3/planner/compilecreatetable.go | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/sql3/planner/compilecreatetable.go b/sql3/planner/compilecreatetable.go
index 3a5eb5f34..1d34aadae 100644
--- a/sql3/planner/compilecreatetable.go
+++ b/sql3/planner/compilecreatetable.go
@@ -170,12 +170,14 @@ func (p *ExecutionPlanner) compileColumn(col *parser.ColumnDefinition) (*createT
 			unit := c.Expr.(*parser.StringLit)
 			timeUnit = unit.Value
 
-			epochString := c.EpochExpr.(*parser.StringLit)
-			tm, err := time.ParseInLocation(time.RFC3339, epochString.Value, time.UTC)
-			if err != nil {
-				return nil, sql3.NewErrInvalidTimeEpoch(c.EpochExpr.Pos().Line, c.EpochExpr.Pos().Line, epochString.Value)
+			if c.EpochExpr != nil {
+				epochString := c.EpochExpr.(*parser.StringLit)
+				tm, err := time.ParseInLocation(time.RFC3339, epochString.Value, time.UTC)
+				if err != nil {
+					return nil, sql3.NewErrInvalidTimeEpoch(c.EpochExpr.Pos().Line, c.EpochExpr.Pos().Line, epochString.Value)
+				}
+				epoch = tm
 			}
-			epoch = tm
 
 		case *parser.TimeQuantumConstraint:
 			unit := c.Expr.(*parser.StringLit)