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Fix memory error with long sql strings #566

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Merged
merged 4 commits into from
Jan 20, 2024
Merged

Fix memory error with long sql strings #566

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ea72013
add a test for #561
lovasoa Jan 20, 2024
52189d4
fix memory issue with long sql strings
lovasoa Jan 20, 2024
876614b
include the new stack size on all targets
lovasoa Jan 20, 2024
aa12a6e
remove debig log
lovasoa Jan 20, 2024
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5 changes: 3 additions & 2 deletions Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -37,7 +37,8 @@ EMFLAGS = \
-s EXPORTED_RUNTIME_METHODS=@src/exported_runtime_methods.json \
-s SINGLE_FILE=0 \
-s NODEJS_CATCH_EXIT=0 \
-s NODEJS_CATCH_REJECTION=0
-s NODEJS_CATCH_REJECTION=0 \
-s STACK_SIZE=5MB

EMFLAGS_ASM = \
-s WASM=0
Expand All @@ -56,7 +57,7 @@ EMFLAGS_OPTIMIZED= \
--closure 1

EMFLAGS_DEBUG = \
-s ASSERTIONS=1 \
-s ASSERTIONS=2 \
-O1

BITCODE_FILES = out/sqlite3.bc out/extension-functions.bc
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34 changes: 34 additions & 0 deletions test/test_long_sql_statement.js
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@@ -0,0 +1,34 @@
// test for https://github.com/sql-js/sql.js/issues/561
exports.test = function (sql, assert) {
// Create a database
var db = new sql.Database();
var len = 70000;
var many_a = "";
for (var i = 0; i < len; i++) many_a += 'a';

var res = db.exec("select length('" + many_a + "') as len");
var expectedResult = [
{
columns: ['len'],
values: [
[len]
]
}
];
assert.deepEqual(res, expectedResult, "length of long string");
};

if (module == require.main) {
const target_file = process.argv[2];
const sql_loader = require('./load_sql_lib');
sql_loader(target_file).then((sql) => {
require('test').run({
'test long sql string (issue 561)': function (assert) {
exports.test(sql, assert);
}
});
}).catch((e) => {
console.error(e);
assert.fail(e);
});
}