From 17f6553f94c44b68666ac44fb7c0713b707457cc Mon Sep 17 00:00:00 2001 From: Levi Gruspe Date: Sat, 17 Sep 2022 22:45:46 +0800 Subject: [PATCH] Add support for sqlite_math_functions tag (#1059) Add support for SQLITE_ENABLE_MATH_FUNCTIONS compile-time option via the sqlite_math_functions build tag. Co-authored-by: Dominik Kraus --- .github/workflows/go.yaml | 4 ++-- README.md | 1 + sqlite3_opt_math_functions.go | 14 ++++++++++++++ sqlite3_opt_math_functions_test.go | 29 +++++++++++++++++++++++++++++ 4 files changed, 46 insertions(+), 2 deletions(-) create mode 100644 sqlite3_opt_math_functions.go create mode 100644 sqlite3_opt_math_functions_test.go diff --git a/.github/workflows/go.yaml b/.github/workflows/go.yaml index ec8b30ab..2030c57b 100644 --- a/.github/workflows/go.yaml +++ b/.github/workflows/go.yaml @@ -44,7 +44,7 @@ jobs: run: go-acc . -- -race -v -tags "libsqlite3" - name: 'Tags: full' - run: go-acc . -- -race -v -tags "sqlite_allow_uri_authority sqlite_app_armor sqlite_foreign_keys sqlite_fts5 sqlite_icu sqlite_introspect sqlite_json sqlite_os_trace sqlite_preupdate_hook sqlite_secure_delete sqlite_see sqlite_stat4 sqlite_trace sqlite_userauth sqlite_vacuum_incr sqlite_vtable sqlite_unlock_notify sqlite_column_metadata" + run: go-acc . -- -race -v -tags "sqlite_allow_uri_authority sqlite_app_armor sqlite_column_metadata sqlite_foreign_keys sqlite_fts5 sqlite_icu sqlite_introspect sqlite_json sqlite_math_functions sqlite_os_trace sqlite_preupdate_hook sqlite_secure_delete sqlite_see sqlite_stat4 sqlite_trace sqlite_unlock_notify sqlite_userauth sqlite_vacuum_incr sqlite_vtable" - name: 'Tags: vacuum' run: go-acc . -- -race -v -tags "sqlite_vacuum_full" @@ -99,7 +99,7 @@ jobs: - name: 'Tags: full' run: | echo 'skip this test' - echo go build -race -v -tags "sqlite_allow_uri_authority sqlite_app_armor sqlite_foreign_keys sqlite_fts5 sqlite_icu sqlite_introspect sqlite_json sqlite_preupdate_hook sqlite_secure_delete sqlite_see sqlite_stat4 sqlite_trace sqlite_userauth sqlite_vacuum_incr sqlite_vtable sqlite_unlock_notify" + echo go build -race -v -tags "sqlite_allow_uri_authority sqlite_app_armor sqlite_column_metadata sqlite_foreign_keys sqlite_fts5 sqlite_icu sqlite_introspect sqlite_json sqlite_math_functions sqlite_preupdate_hook sqlite_secure_delete sqlite_see sqlite_stat4 sqlite_trace sqlite_unlock_notify sqlite_userauth sqlite_vacuum_incr sqlite_vtable" shell: msys2 {0} - name: 'Tags: vacuum' diff --git a/README.md b/README.md index 25a24965..913bf6a7 100644 --- a/README.md +++ b/README.md @@ -172,6 +172,7 @@ go build --tags "icu json1 fts5 secure_delete" | International Components for Unicode | sqlite_icu | This option causes the International Components for Unicode or "ICU" extension to SQLite to be added to the build | | Introspect PRAGMAS | sqlite_introspect | This option adds some extra PRAGMA statements. | | JSON SQL Functions | sqlite_json | When this option is defined in the amalgamation, the JSON SQL functions are added to the build automatically | +| Math Functions | sqlite_math_functions | This compile-time option enables built-in scalar math functions. For more information see [Built-In Mathematical SQL Functions](https://www.sqlite.org/lang_mathfunc.html) | | OS Trace | sqlite_os_trace | This option enables OSTRACE() debug logging. This can be verbose and should not be used in production. | | Pre Update Hook | sqlite_preupdate_hook | Registers a callback function that is invoked prior to each INSERT, UPDATE, and DELETE operation on a database table. | | Secure Delete | sqlite_secure_delete | This compile-time option changes the default setting of the secure_delete pragma.

When this option is not used, secure_delete defaults to off. When this option is present, secure_delete defaults to on.

The secure_delete setting causes deleted content to be overwritten with zeros. There is a small performance penalty since additional I/O must occur.

On the other hand, secure_delete can prevent fragments of sensitive information from lingering in unused parts of the database file after it has been deleted. See the documentation on the secure_delete pragma for additional information | diff --git a/sqlite3_opt_math_functions.go b/sqlite3_opt_math_functions.go new file mode 100644 index 00000000..7cd68d3f --- /dev/null +++ b/sqlite3_opt_math_functions.go @@ -0,0 +1,14 @@ +// Copyright (C) 2022 Yasuhiro Matsumoto . +// +// Use of this source code is governed by an MIT-style +// license that can be found in the LICENSE file. + +// +build sqlite_math_functions + +package sqlite3 + +/* +#cgo CFLAGS: -DSQLITE_ENABLE_MATH_FUNCTIONS +#cgo LDFLAGS: -lm +*/ +import "C" diff --git a/sqlite3_opt_math_functions_test.go b/sqlite3_opt_math_functions_test.go new file mode 100644 index 00000000..6ff076b4 --- /dev/null +++ b/sqlite3_opt_math_functions_test.go @@ -0,0 +1,29 @@ +// +build sqlite_math_functions + +package sqlite3 + +import ( + "database/sql" + "testing" +) + +func TestMathFunctions(t *testing.T) { + db, err := sql.Open("sqlite3", ":memory:") + if err != nil { + t.Fatal("Failed to open database:", err) + } + defer db.Close() + + queries := []string{ + `SELECT acos(1)`, + `SELECT log(10, 100)`, + `SELECT power(2, 2)`, + } + + for _, query := range queries { + var result float64 + if err := db.QueryRow(query).Scan(&result); err != nil { + t.Errorf("invoking math function query %q: %v", query, err) + } + } +}