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Make index constraints and values iterable

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This commit is contained in:
gwenn
2016-08-20 09:55:25 +02:00
parent 1d342ef5f3
commit b11a4b1c73
2 changed files with 87 additions and 50 deletions
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12
src/vtab/series.rs
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@@ -1,5 +1,5 @@
//! generate_series virtual table.
//! Port of C [generate_series "function"](http://www.sqlite.org/cgi/src/finfo?name=ext/misc/series.c).
//! generate series virtual table.
//! Port of C [generate series "function"](http://www.sqlite.org/cgi/src/finfo?name=ext/misc/series.c).
use std::default::Default;
use libc;
@@ -81,14 +81,14 @@ impl VTab<SeriesTabCursor> for SeriesTab {
let mut stop_idx = None;
// Index of the step= constraint
let mut step_idx = None;
for i in 0..info.num_of_constraint() {
if !info.is_constraint_usable(i) {
for (i, constraint) in info.constraints().enumerate() {
if !constraint.is_usable() {
continue;
}
if info.constraint_operator(i) != vtab::SQLITE_INDEX_CONSTRAINT_EQ {
if constraint.operator() != vtab::SQLITE_INDEX_CONSTRAINT_EQ {
continue;
}
match info.constraint_column(i) {
match constraint.column() {
SERIES_COLUMN_START => {
start_idx = Some(i);
idx_num |= START;