Merge 'support multiple conflict clauses in upsert' from Nikita Sivukhin

This PR implements support for `ON CONFLICT` clause chain, e.g.
```
INSERT INTO ct(id, x, y) VALUES (4, 'x', 'y1'), (5, 'a1', 'b'), (3, '_', '_')
  ON CONFLICT(x) DO UPDATE SET x = excluded.x || '-' || x, y = excluded.y || '@' || y, z = 'x' 
  ON CONFLICT(y) DO UPDATE SET x = excluded.x || '+' || x, y = excluded.y || '!' || y, z = 'y' 
  ON CONFLICT DO UPDATE SET x = excluded.x || '#' || x, y = excluded.y || '%' || y, z = 'fallback';
```

Reviewed-by: Jussi Saurio <jussi.saurio@gmail.com>
Reviewed-by: Preston Thorpe <preston@turso.tech>

Closes #3453
This commit is contained in:
Preston Thorpe
2025-09-30 19:50:59 -04:00
committed by GitHub
6 changed files with 340 additions and 241 deletions

View File

@@ -136,6 +136,37 @@ test('offset-bug', async () => {
expect(await stmt.all(1, 1)).toEqual([{ id: 2, name: 'John1', verified: 0 }])
})
test('conflict-bug', async () => {
const db = await connect(':memory:');
const create = db.prepare(`create table "conflict_chain_example" (
id integer not null unique,
name text not null,
email text not null,
primary key (id, name)
)`);
await create.run();
await db.prepare(`insert into "conflict_chain_example" ("id", "name", "email") values (?, ?, ?), (?, ?, ?)`).run(
1,
'John',
'john@example.com',
2,
'John Second',
'2john@example.com',
);
const insert = db.prepare(
`insert into "conflict_chain_example" ("id", "name", "email") values (?, ?, ?), (?, ?, ?) on conflict ("conflict_chain_example"."id", "conflict_chain_example"."name") do update set "email" = ? on conflict ("conflict_chain_example"."id") do nothing`,
);
await insert.run(1, 'John', 'john@example.com', 2, 'Anthony', 'idthief@example.com', 'john1@example.com');
expect(await db.prepare("SELECT * FROM conflict_chain_example").all()).toEqual([
{ id: 1, name: 'John', email: 'john1@example.com' },
{ id: 2, name: 'John Second', email: '2john@example.com' }
]);
})
test('on-disk db', async () => {
const path = `test-${(Math.random() * 10000) | 0}.db`;
try {

View File

@@ -137,10 +137,10 @@ pub fn translate_insert(
let root_page = btree_table.root_page;
let mut values: Option<Vec<Box<Expr>>> = None;
let mut upsert_opt: Option<Upsert> = None;
let mut upsert_actions: Vec<(ResolvedUpsertTarget, BranchOffset, Box<Upsert>)> = Vec::new();
let mut inserting_multiple_rows = false;
if let InsertBody::Select(select, upsert) = &mut body {
if let InsertBody::Select(select, upsert_opt) = &mut body {
match &mut select.body.select {
// TODO see how to avoid clone
OneSelect::Values(values_expr) if values_expr.len() <= 1 => {
@@ -177,7 +177,7 @@ pub fn translate_insert(
}
_ => inserting_multiple_rows = true,
}
if let Some(ref mut upsert) = upsert {
while let Some(mut upsert) = upsert_opt.take() {
if let UpsertDo::Set {
ref mut sets,
ref mut where_clause,
@@ -204,15 +204,16 @@ pub fn translate_insert(
)?;
}
}
let next = upsert.next.take();
upsert_actions.push((
// resolve the constrained target for UPSERT in the chain
resolve_upsert_target(resolver.schema, &table, &upsert)?,
program.allocate_label(),
upsert,
));
*upsert_opt = next;
}
upsert_opt = upsert.as_deref().cloned();
}
// resolve the constrained target for UPSERT if specified
let resolved_upsert = if let Some(upsert) = &upsert_opt {
Some(resolve_upsert_target(resolver.schema, &table, upsert)?)
} else {
None
};
if inserting_multiple_rows && btree_table.has_autoincrement {
ensure_sequence_initialized(&mut program, resolver.schema, &btree_table)?;
@@ -407,7 +408,7 @@ pub fn translate_insert(
)
}
};
let has_upsert = upsert_opt.is_some();
let has_upsert = !upsert_actions.is_empty();
// Set up the program to return result columns if RETURNING is specified
if !result_columns.is_empty() {
@@ -430,7 +431,6 @@ pub fn translate_insert(
let insertion = build_insertion(&mut program, &table, &columns, num_values)?;
let upsert_entry = program.allocate_label();
let conflict_rowid_reg = program.alloc_register();
if inserting_multiple_rows {
@@ -624,51 +624,6 @@ pub fn translate_insert(
program.preassign_label_to_next_insn(key_ready_for_uniqueness_check_label);
// Check uniqueness constraint for rowid if it was provided by user.
// When the DB allocates it there are no need for separate uniqueness checks.
if has_user_provided_rowid {
let make_record_label = program.allocate_label();
program.emit_insn(Insn::NotExists {
cursor: cursor_id,
rowid_reg: insertion.key_register(),
target_pc: make_record_label,
});
let rowid_column_name = insertion.key.column_name();
// Conflict on rowid: attempt to route through UPSERT if it targets the PK, otherwise raise constraint.
// emit Halt for every case *except* when upsert handles the conflict
'emit_halt: {
if let (Some(_), Some(ref target)) = (upsert_opt.as_mut(), resolved_upsert.as_ref()) {
if matches!(
target,
ResolvedUpsertTarget::CatchAll | ResolvedUpsertTarget::PrimaryKey
) {
// PK conflict: the conflicting rowid is exactly the attempted key
program.emit_insn(Insn::Copy {
src_reg: insertion.key_register(),
dst_reg: conflict_rowid_reg,
extra_amount: 0,
});
program.emit_insn(Insn::Goto {
target_pc: upsert_entry,
});
break 'emit_halt;
}
}
let mut description =
String::with_capacity(table_name.as_str().len() + rowid_column_name.len() + 2);
description.push_str(table_name.as_str());
description.push('.');
description.push_str(rowid_column_name);
program.emit_insn(Insn::Halt {
err_code: SQLITE_CONSTRAINT_PRIMARYKEY,
description,
});
}
program.preassign_label_to_next_insn(make_record_label);
}
match table.btree() {
Some(t) if t.is_strict => {
program.emit_insn(Insn::TypeCheck {
@@ -681,6 +636,36 @@ pub fn translate_insert(
_ => (),
}
let mut constraints_to_check = Vec::new();
if has_user_provided_rowid {
// Check uniqueness constraint for rowid if it was provided by user.
// When the DB allocates it there are no need for separate uniqueness checks.
let position = upsert_actions
.iter()
.position(|(target, ..)| matches!(target, ResolvedUpsertTarget::PrimaryKey));
constraints_to_check.push((ResolvedUpsertTarget::PrimaryKey, position));
}
for index in resolver.schema.get_indices(table_name.as_str()) {
let position = upsert_actions
.iter()
.position(|(target, ..)| matches!(target, ResolvedUpsertTarget::Index(x) if Arc::ptr_eq(x, index)));
constraints_to_check.push((ResolvedUpsertTarget::Index(index.clone()), position));
}
constraints_to_check.sort_by(|(_, p1), (_, p2)| match (p1, p2) {
(Some(p1), Some(p2)) => p1.cmp(p2),
(Some(_), None) => std::cmp::Ordering::Less,
(None, Some(_)) => std::cmp::Ordering::Greater,
(None, None) => std::cmp::Ordering::Equal,
});
let upsert_catch_all_position =
if let Some((ResolvedUpsertTarget::CatchAll, ..)) = upsert_actions.last() {
Some(upsert_actions.len() - 1)
} else {
None
};
// We need to separate index handling and insertion into a `preflight` and a
// `commit` phase, because in UPSERT mode we might need to skip the actual insertion, as we can
// have a naked ON CONFLICT DO NOTHING, so if we eagerly insert any indexes, we could insert
@@ -693,192 +678,221 @@ pub fn translate_insert(
// DO UPDATE (matching target) -> fetch conflicting rowid and jump to `upsert_entry`.
//
// otherwise, raise SQLITE_CONSTRAINT_UNIQUE
for index in resolver.schema.get_indices(table_name.as_str()) {
let column_mappings = index
.columns
.iter()
.map(|idx_col| insertion.get_col_mapping_by_name(&idx_col.name));
// find which cursor we opened earlier for this index
let idx_cursor_id = idx_cursors
.iter()
.find(|(name, _, _)| *name == &index.name)
.map(|(_, _, c_id)| *c_id)
.expect("no cursor found for index");
let maybe_skip_probe_label = if let Some(where_clause) = &index.where_clause {
let mut where_for_eval = where_clause.as_ref().clone();
rewrite_partial_index_where(&mut where_for_eval, &insertion)?;
let reg = program.alloc_register();
translate_expr_no_constant_opt(
&mut program,
Some(&TableReferences::new_empty()),
&where_for_eval,
reg,
resolver,
NoConstantOptReason::RegisterReuse,
)?;
let lbl = program.allocate_label();
program.emit_insn(Insn::IfNot {
reg,
target_pc: lbl,
jump_if_null: true,
});
Some(lbl)
} else {
None
};
let num_cols = index.columns.len();
// allocate scratch registers for the index columns plus rowid
let idx_start_reg = program.alloc_registers(num_cols + 1);
// build unpacked key [idx_start_reg .. idx_start_reg+num_cols-1], and rowid in last reg,
// copy each index column from the table's column registers into these scratch regs
for (i, column_mapping) in column_mappings.clone().enumerate() {
// copy from the table's column register over to the index's scratch register
let Some(col_mapping) = column_mapping else {
return Err(crate::LimboError::PlanningError(
"Column not found in INSERT".to_string(),
));
};
program.emit_insn(Insn::Copy {
src_reg: col_mapping.register,
dst_reg: idx_start_reg + i,
extra_amount: 0,
});
}
// last register is the rowid
program.emit_insn(Insn::Copy {
src_reg: insertion.key_register(),
dst_reg: idx_start_reg + num_cols,
extra_amount: 0,
});
if index.unique {
let aff = index
.columns
.iter()
.map(|ic| table.columns()[ic.pos_in_table].affinity().aff_mask())
.collect::<String>();
program.emit_insn(Insn::Affinity {
start_reg: idx_start_reg,
count: NonZeroUsize::new(num_cols).expect("nonzero col count"),
affinities: aff,
});
if has_upsert {
let next_check = program.allocate_label();
program.emit_insn(Insn::NoConflict {
cursor_id: idx_cursor_id,
target_pc: next_check,
record_reg: idx_start_reg,
num_regs: num_cols,
for (constraint, position) in constraints_to_check {
match constraint {
ResolvedUpsertTarget::PrimaryKey => {
let make_record_label = program.allocate_label();
program.emit_insn(Insn::NotExists {
cursor: cursor_id,
rowid_reg: insertion.key_register(),
target_pc: make_record_label,
});
let rowid_column_name = insertion.key.column_name();
// Conflict detected, figure out if this UPSERT handles the conflict
let upsert_matches_this_index = if let (Some(_u), Some(ref target)) =
(upsert_opt.as_ref(), resolved_upsert.as_ref())
{
match target {
ResolvedUpsertTarget::CatchAll => true,
ResolvedUpsertTarget::Index(tgt) => Arc::ptr_eq(tgt, index),
// note: PK handled earlier by rowid path; this is a secondary index
ResolvedUpsertTarget::PrimaryKey => false,
// Conflict on rowid: attempt to route through UPSERT if it targets the PK, otherwise raise constraint.
// emit Halt for every case *except* when upsert handles the conflict
'emit_halt: {
if let Some(position) = position.or(upsert_catch_all_position) {
// PK conflict: the conflicting rowid is exactly the attempted key
program.emit_insn(Insn::Copy {
src_reg: insertion.key_register(),
dst_reg: conflict_rowid_reg,
extra_amount: 0,
});
program.emit_insn(Insn::Goto {
target_pc: upsert_actions[position].1,
});
break 'emit_halt;
}
} else {
false
};
if upsert_matches_this_index {
// Distinguish DO NOTHING vs DO UPDATE
match upsert_opt.as_ref().unwrap().do_clause {
UpsertDo::Nothing => {
// Bail out without writing anything
program.emit_insn(Insn::Goto {
target_pc: row_done_label,
});
}
UpsertDo::Set { .. } => {
// Route to DO UPDATE: capture conflicting rowid then jump
program.emit_insn(Insn::IdxRowId {
cursor_id: idx_cursor_id,
dest: conflict_rowid_reg,
});
program.emit_insn(Insn::Goto {
target_pc: upsert_entry,
});
}
}
} else {
// No matching UPSERT handler so we emit constraint error
let mut description = String::with_capacity(
table_name.as_str().len() + rowid_column_name.len() + 2,
);
description.push_str(table_name.as_str());
description.push('.');
description.push_str(rowid_column_name);
program.emit_insn(Insn::Halt {
err_code: SQLITE_CONSTRAINT_UNIQUE,
description: format_unique_violation_desc(table_name.as_str(), index),
err_code: SQLITE_CONSTRAINT_PRIMARYKEY,
description,
});
}
// continue preflight with next constraint
program.preassign_label_to_next_insn(next_check);
} else {
// No UPSERT fast-path: probe and immediately insert
let ok = program.allocate_label();
program.emit_insn(Insn::NoConflict {
cursor_id: idx_cursor_id,
target_pc: ok,
record_reg: idx_start_reg,
num_regs: num_cols,
});
// Unique violation without ON CONFLICT clause -> error
program.emit_insn(Insn::Halt {
err_code: SQLITE_CONSTRAINT_UNIQUE,
description: format_unique_violation_desc(table_name.as_str(), index),
});
program.preassign_label_to_next_insn(ok);
// In the non-UPSERT case, we insert the index
let record_reg = program.alloc_register();
program.emit_insn(Insn::MakeRecord {
start_reg: idx_start_reg,
count: num_cols + 1,
dest_reg: record_reg,
index_name: Some(index.name.clone()),
affinity_str: None,
});
program.emit_insn(Insn::IdxInsert {
cursor_id: idx_cursor_id,
record_reg,
unpacked_start: Some(idx_start_reg),
unpacked_count: Some((num_cols + 1) as u16),
flags: IdxInsertFlags::new().nchange(true),
});
program.preassign_label_to_next_insn(make_record_label);
}
} else {
// Non-unique index: in UPSERT mode we postpone writes to commit phase.
if !has_upsert {
// eager insert for non-unique, no UPSERT
let record_reg = program.alloc_register();
program.emit_insn(Insn::MakeRecord {
start_reg: idx_start_reg,
count: num_cols + 1,
dest_reg: record_reg,
index_name: Some(index.name.clone()),
affinity_str: None,
});
program.emit_insn(Insn::IdxInsert {
cursor_id: idx_cursor_id,
record_reg,
unpacked_start: Some(idx_start_reg),
unpacked_count: Some((num_cols + 1) as u16),
flags: IdxInsertFlags::new().nchange(true),
});
}
}
ResolvedUpsertTarget::Index(index) => {
let column_mappings = index
.columns
.iter()
.map(|idx_col| insertion.get_col_mapping_by_name(&idx_col.name));
// find which cursor we opened earlier for this index
let idx_cursor_id = idx_cursors
.iter()
.find(|(name, _, _)| *name == &index.name)
.map(|(_, _, c_id)| *c_id)
.expect("no cursor found for index");
// Close the partial-index skip (preflight)
if let Some(lbl) = maybe_skip_probe_label {
program.resolve_label(lbl, program.offset());
let maybe_skip_probe_label = if let Some(where_clause) = &index.where_clause {
let mut where_for_eval = where_clause.as_ref().clone();
rewrite_partial_index_where(&mut where_for_eval, &insertion)?;
let reg = program.alloc_register();
translate_expr_no_constant_opt(
&mut program,
Some(&TableReferences::new_empty()),
&where_for_eval,
reg,
resolver,
NoConstantOptReason::RegisterReuse,
)?;
let lbl = program.allocate_label();
program.emit_insn(Insn::IfNot {
reg,
target_pc: lbl,
jump_if_null: true,
});
Some(lbl)
} else {
None
};
let num_cols = index.columns.len();
// allocate scratch registers for the index columns plus rowid
let idx_start_reg = program.alloc_registers(num_cols + 1);
// build unpacked key [idx_start_reg .. idx_start_reg+num_cols-1], and rowid in last reg,
// copy each index column from the table's column registers into these scratch regs
for (i, column_mapping) in column_mappings.clone().enumerate() {
// copy from the table's column register over to the index's scratch register
let Some(col_mapping) = column_mapping else {
return Err(crate::LimboError::PlanningError(
"Column not found in INSERT".to_string(),
));
};
program.emit_insn(Insn::Copy {
src_reg: col_mapping.register,
dst_reg: idx_start_reg + i,
extra_amount: 0,
});
}
// last register is the rowid
program.emit_insn(Insn::Copy {
src_reg: insertion.key_register(),
dst_reg: idx_start_reg + num_cols,
extra_amount: 0,
});
if index.unique {
let aff = index
.columns
.iter()
.map(|ic| table.columns()[ic.pos_in_table].affinity().aff_mask())
.collect::<String>();
program.emit_insn(Insn::Affinity {
start_reg: idx_start_reg,
count: NonZeroUsize::new(num_cols).expect("nonzero col count"),
affinities: aff,
});
if has_upsert {
let next_check = program.allocate_label();
program.emit_insn(Insn::NoConflict {
cursor_id: idx_cursor_id,
target_pc: next_check,
record_reg: idx_start_reg,
num_regs: num_cols,
});
// Conflict detected, figure out if this UPSERT handles the conflict
if let Some(position) = position.or(upsert_catch_all_position) {
match &upsert_actions[position].2.do_clause {
UpsertDo::Nothing => {
// Bail out without writing anything
program.emit_insn(Insn::Goto {
target_pc: row_done_label,
});
}
UpsertDo::Set { .. } => {
// Route to DO UPDATE: capture conflicting rowid then jump
program.emit_insn(Insn::IdxRowId {
cursor_id: idx_cursor_id,
dest: conflict_rowid_reg,
});
program.emit_insn(Insn::Goto {
target_pc: upsert_actions[position].1,
});
}
}
}
// No matching UPSERT handler so we emit constraint error
// (if conflict clause matched - VM will jump to later instructions and skip halt)
program.emit_insn(Insn::Halt {
err_code: SQLITE_CONSTRAINT_UNIQUE,
description: format_unique_violation_desc(table_name.as_str(), &index),
});
// continue preflight with next constraint
program.preassign_label_to_next_insn(next_check);
} else {
// No UPSERT fast-path: probe and immediately insert
let ok = program.allocate_label();
program.emit_insn(Insn::NoConflict {
cursor_id: idx_cursor_id,
target_pc: ok,
record_reg: idx_start_reg,
num_regs: num_cols,
});
// Unique violation without ON CONFLICT clause -> error
program.emit_insn(Insn::Halt {
err_code: SQLITE_CONSTRAINT_UNIQUE,
description: format_unique_violation_desc(table_name.as_str(), &index),
});
program.preassign_label_to_next_insn(ok);
// In the non-UPSERT case, we insert the index
let record_reg = program.alloc_register();
program.emit_insn(Insn::MakeRecord {
start_reg: idx_start_reg,
count: num_cols + 1,
dest_reg: record_reg,
index_name: Some(index.name.clone()),
affinity_str: None,
});
program.emit_insn(Insn::IdxInsert {
cursor_id: idx_cursor_id,
record_reg,
unpacked_start: Some(idx_start_reg),
unpacked_count: Some((num_cols + 1) as u16),
flags: IdxInsertFlags::new().nchange(true),
});
}
} else {
// Non-unique index: in UPSERT mode we postpone writes to commit phase.
if !has_upsert {
// eager insert for non-unique, no UPSERT
let record_reg = program.alloc_register();
program.emit_insn(Insn::MakeRecord {
start_reg: idx_start_reg,
count: num_cols + 1,
dest_reg: record_reg,
index_name: Some(index.name.clone()),
affinity_str: None,
});
program.emit_insn(Insn::IdxInsert {
cursor_id: idx_cursor_id,
record_reg,
unpacked_start: Some(idx_start_reg),
unpacked_count: Some((num_cols + 1) as u16),
flags: IdxInsertFlags::new().nchange(true),
});
}
}
// Close the partial-index skip (preflight)
if let Some(lbl) = maybe_skip_probe_label {
program.resolve_label(lbl, program.offset());
}
}
ResolvedUpsertTarget::CatchAll => unreachable!(),
}
}
for column_mapping in insertion
.col_mappings
.iter()
@@ -1085,11 +1099,9 @@ pub fn translate_insert(
target_pc: row_done_label,
});
// Normal INSERT path is done above
// Any conflict routed to UPSERT jumps past all that to here:
program.preassign_label_to_next_insn(upsert_entry);
if let (Some(mut upsert), Some(_)) = (upsert_opt.take(), resolved_upsert.clone()) {
// Only DO UPDATE (SET ...); DO NOTHING should have already jumped to row_done_label earlier.
for (_, label, mut upsert) in upsert_actions {
program.preassign_label_to_next_insn(label);
if let UpsertDo::Set {
ref mut sets,
ref mut where_clause,

View File

@@ -274,7 +274,7 @@ pub fn upsert_matches_index(upsert: &Upsert, index: &Index, table: &Table) -> bo
idx_cols.is_empty()
}
#[derive(Clone)]
#[derive(Clone, Debug)]
pub enum ResolvedUpsertTarget {
// ON CONFLICT DO
CatchAll,

35
testing/upsert.test Normal file → Executable file
View File

@@ -201,6 +201,22 @@ do_execsql_test_in_memory_any_error upsert-composite-target-too-few {
ON CONFLICT(a) DO UPDATE SET val = excluded.val; -- only "a" given → no match → error
}
# Composite index requires exact coverage, targeting too few columns must not match.
do_execsql_test_on_specific_db {:memory:} upsert-multilple-conflict-targets {
CREATE TABLE ct (id INTEGER PRIMARY KEY, x UNIQUE, y UNIQUE, z DEFAULT NULL);
INSERT INTO ct(id, x, y) VALUES (1, 'x', 'y');
INSERT INTO ct(id, x, y) VALUES (2, 'a', 'b');
INSERT INTO ct(id, x, y) VALUES (3, '!', '@');
INSERT INTO ct(id, x, y) VALUES (4, 'x', 'y1'), (5, 'a1', 'b'), (3, '_', '_')
ON CONFLICT(x) DO UPDATE SET x = excluded.x || '-' || x, y = excluded.y || '@' || y, z = 'x'
ON CONFLICT(y) DO UPDATE SET x = excluded.x || '+' || x, y = excluded.y || '!' || y, z = 'y'
ON CONFLICT DO UPDATE SET x = excluded.x || '#' || x, y = excluded.y || '%' || y, z = 'fallback';
SELECT * FROM ct;
} {1|x-x|y1@y|x
2|a1+a|b!b|y
3|_#!|_%@|fallback
}
# Qualified target (t.a) should match unique index on a.
do_execsql_test_on_specific_db {:memory:} upsert-qualified-target {
CREATE TABLE qt (a UNIQUE, b);
@@ -337,6 +353,25 @@ do_execsql_test_on_specific_db {:memory:} upsert-doubly-qualified-target {
SELECT * FROM dq;
} {1|new}
do_execsql_test_on_specific_db {:memory:} upsert-targets-chain {
CREATE TABLE dq (a UNIQUE, b UNIQUE, c UNIQUE, value TEXT);
CREATE UNIQUE INDEX dq_ab ON dq(a, b);
INSERT INTO dq VALUES ('a1', 'a2', 'a3', 'aaa');
INSERT INTO dq VALUES ('b1', 'b2', 'b3', 'bbb');
INSERT INTO dq VALUES ('c1', 'c2', 'c3', 'ccc');
INSERT INTO dq VALUES ('d1', 'd2', 'd3', 'ddd');
INSERT INTO dq VALUES
('a1', 'a2', 'a3', 'upd1'), ('b1', 'b1', 'b1', 'upd2'), ('c2', 'c2', 'c2', 'upd3'), ('d3', 'd3', 'd3', 'upd4')
ON CONFLICT (a, b) DO UPDATE SET value = excluded.value || '-a'
ON CONFLICT (a) DO UPDATE SET value = excluded.value || '-b'
ON CONFLICT (b) DO UPDATE SET value = excluded.value || '-c'
ON CONFLICT DO UPDATE SET value = excluded.value || '-d';
SELECT * FROM dq;
} {a1|a2|a3|upd1-a
b1|b2|b3|upd2-b
c1|c2|c3|upd3-c
d1|d2|d3|upd4-d}
# https://github.com/tursodatabase/turso/issues/3384
do_execsql_test_on_specific_db {:memory:} upsert-non-rowid-pk-target {
create table phonebook(name text primary key, phonenumber text, validDate date);

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@@ -672,12 +672,12 @@ mod tests {
#[test]
pub fn partial_index_mutation_and_upsert_fuzz() {
index_mutation_upsert_fuzz(1.0, 1);
index_mutation_upsert_fuzz(1.0, 4);
}
#[test]
pub fn simple_index_mutation_and_upsert_fuzz() {
index_mutation_upsert_fuzz(0.0, 0);
index_mutation_upsert_fuzz(0.0, 4);
}
fn index_mutation_upsert_fuzz(partial_index_prob: f64, conflict_chain_max_len: u32) {

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@@ -839,3 +839,24 @@ pub fn delete_eq_correct() {
limbo_exec_rows(&limbo, &conn, "SELECT * FROM t ORDER BY id")
);
}
#[test]
pub fn upsert_conflict() {
let limbo = TempDatabase::new_empty(true);
let conn = limbo.db.connect().unwrap();
for sql in [
"CREATE TABLE t (id INTEGER PRIMARY KEY AUTOINCREMENT, c INT UNIQUE, value INT);",
"INSERT INTO t VALUES (1, 2, 100);",
"INSERT INTO t VALUES (1, 2, 0) ON CONFLICT (c) DO UPDATE SET value = 42;",
] {
conn.execute(sql).unwrap();
}
assert_eq!(
vec![vec![
rusqlite::types::Value::Integer(1),
rusqlite::types::Value::Integer(2),
rusqlite::types::Value::Integer(42),
]],
limbo_exec_rows(&limbo, &conn, "SELECT * FROM t")
);
}