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fuzz: create multi-column indices in table_index_mutation_fuzz

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This commit is contained in:
Jussi Saurio
2025-10-14 17:23:21 +03:00
parent b3b07252dc
commit 0ae4425e4c
1 changed files with 28 additions and 4 deletions
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32
tests/integration/fuzz/mod.rs
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@@ -1844,7 +1844,7 @@ mod tests {
pub fn table_index_mutation_fuzz() {
let _ = env_logger::try_init();
let (mut rng, seed) = rng_from_time();
println!("index_scan_single_key_mutation_fuzz seed: {seed}");
println!("table_index_mutation_fuzz seed: {seed}");
const OUTER_ITERATIONS: usize = 100;
for i in 0..OUTER_ITERATIONS {
@@ -1866,9 +1866,33 @@ mod tests {
let table_def = format!("CREATE TABLE t ({table_def})");
let num_indexes = rng.random_range(0..=num_cols);
let indexes = (0..num_indexes)
.map(|i| format!("CREATE INDEX idx_{i} ON t(c{i})"))
.collect::<Vec<_>>();
let mut indexes = Vec::new();
for i in 0..num_indexes {
// Decide if this should be a single-column or multi-column index
let is_multi_column = rng.random_bool(0.5) && num_cols > 1;
if is_multi_column {
// Create a multi-column index with 2-3 columns
let num_index_cols = rng.random_range(2..=3.min(num_cols));
let mut index_cols = Vec::new();
let mut available_cols: Vec<usize> = (0..num_cols).collect();
for _ in 0..num_index_cols {
let idx = rng.random_range(0..available_cols.len());
let col = available_cols.remove(idx);
index_cols.push(format!("c{col}"));
}
indexes.push(format!(
"CREATE INDEX idx_{i} ON t({})",
index_cols.join(", ")
));
} else {
// Single-column index
let col = rng.random_range(0..num_cols);
indexes.push(format!("CREATE INDEX idx_{i} ON t(c{col})"));
}
}
// Create tables and indexes in both databases
let limbo_conn = limbo_db.connect_limbo();