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feat: CREATE TABLE LIKE source_table #18

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Merged
tianzhou merged 1 commit into from
Sep 11, 2025
Merged

feat: CREATE TABLE LIKE source_table #18

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10 changes: 10 additions & 0 deletions internal/diff/table.go
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Original file line number Diff line number Diff line change
Expand Up @@ -422,6 +422,16 @@ func generateTableSQL(table *ir.Table, targetSchema string) string {
columnParts = append(columnParts, fmt.Sprintf(" %s", builder.String()))
}

// Add LIKE clauses
for _, likeClause := range table.LikeClauses {
likeTableName := util.QualifyEntityNameWithQuotes(likeClause.SourceSchema, likeClause.SourceTable, targetSchema)
likeSQL := fmt.Sprintf("LIKE %s", likeTableName)
if likeClause.Options != "" {
likeSQL += " " + likeClause.Options
}
columnParts = append(columnParts, fmt.Sprintf(" %s", likeSQL))
}

// Add constraints inline in the correct order (PRIMARY KEY, UNIQUE, FOREIGN KEY)
inlineConstraints := getInlineConstraintsForTable(table)
for _, constraint := range inlineConstraints {
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8 changes: 8 additions & 0 deletions internal/ir/ir.go
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Expand Up @@ -29,6 +29,13 @@ type Schema struct {
mu sync.RWMutex // Protects concurrent access to all maps
}

// LikeClause represents a LIKE clause in CREATE TABLE statement
type LikeClause struct {
SourceSchema string `json:"source_schema"`
SourceTable string `json:"source_table"`
Options string `json:"options"` // e.g., "INCLUDING ALL" or "INCLUDING DEFAULTS EXCLUDING INDEXES"
}

// Table represents a database table
type Table struct {
Schema string `json:"schema"`
Expand All @@ -45,6 +52,7 @@ type Table struct {
IsPartitioned bool `json:"is_partitioned"`
PartitionStrategy string `json:"partition_strategy,omitempty"` // RANGE, LIST, HASH
PartitionKey string `json:"partition_key,omitempty"` // Column(s) used for partitioning
LikeClauses []LikeClause `json:"like_clauses,omitempty"` // LIKE clauses in CREATE TABLE
}

// Column represents a table column
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