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Add hash-based indexes

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This commit is contained in:
Barak Michener 2015-08-07 14:35:24 -04:00
parent c98318aa97
commit ab3f59d21f
5 changed files with 95 additions and 44 deletions
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9
graph/sql/sql_node_iterator.go
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@ -89,6 +89,9 @@ func (n *SQLNodeIterator) Describe() string {
func (n *SQLNodeIterator) buildResult(result []string, cols []string) map[string]string {
m := make(map[string]string)
for i, c := range cols {
if strings.HasSuffix(c, "_hash") {
continue
}
if c == "__execd" {
n.result = result[i]
}
@ -157,7 +160,7 @@ func (n *SQLNodeIterator) buildWhere() (string, []string) {
return query, vals
}
func (n *SQLNodeIterator) buildSQL(next bool, val graph.Value) (string, []string) {
func (n *SQLNodeIterator) buildSQL(next bool, val graph.Value, _ bool) (string, []string) {
topData := n.tableID()
tags := []tagDir{topData}
tags = append(tags, n.getTags()...)
@ -185,8 +188,8 @@ func (n *SQLNodeIterator) buildSQL(next bool, val graph.Value) (string, []string
if constraint != "" {
constraint += " AND "
}
constraint += fmt.Sprintf("%s.%s = ?", topData.table, topData.dir)
values = append(values, v)
constraint += fmt.Sprintf("%s.%s_hash = ?", topData.table, topData.dir)
values = append(values, hashOf(v))
}
query += constraint
query += ";"