From 8cfc47215948601a4fdff967935d7347995b9f67 Mon Sep 17 00:00:00 2001
From: vms <michail.vms@gmail.com>
Date: Wed, 19 Aug 2020 13:27:31 +0300
Subject: [PATCH] update

---
 Cargo.lock                   | 589 ++++++++++++++++++++++++++++++++++-
 examples/mariadb/src/main.rs |  41 ++-
 examples/mariadb/src/path.rs |  52 ----
 3 files changed, 594 insertions(+), 88 deletions(-)
 delete mode 100644 examples/mariadb/src/path.rs

diff --git a/Cargo.lock b/Cargo.lock
index 19b0aa4e..5a0d3822 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -15,6 +15,15 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ee2a4ec343196209d6594e19543ae87a39f96d5534d7174822a3ad825dd6ed7e"
 
+[[package]]
+name = "ahash"
+version = "0.2.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6f33b5018f120946c1dcf279194f238a9f146725593ead1c08fa47ff22b0b5d3"
+dependencies = [
+ "const-random",
+]
+
 [[package]]
 name = "aho-corasick"
 version = "0.7.13"
@@ -45,6 +54,15 @@ version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a4c527152e37cf757a3f78aae5a06fbeefdb07ccc535c980a3208ee3060dd544"
 
+[[package]]
+name = "arrayvec"
+version = "0.4.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cd9fd44efafa8690358b7408d253adf110036b88f55672a933f01d616ad9b1b9"
+dependencies = [
+ "nodrop",
+]
+
 [[package]]
 name = "arrayvec"
 version = "0.5.1"
@@ -62,6 +80,12 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "autocfg"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d49d90015b3c36167a20fe2810c5cd875ad504b39cff3d4eae7977e6b7c1cb2"
+
 [[package]]
 name = "autocfg"
 version = "1.0.0"
@@ -88,6 +112,18 @@ version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b41b7ea54a0c9d92199de89e20e58d49f02f8e699814ef3fdf266f6f748d15c7"
 
+[[package]]
+name = "bigdecimal"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1374191e2dd25f9ae02e3aa95041ed5d747fc77b3c102b49fe2dd9a8117a6244"
+dependencies = [
+ "num-bigint",
+ "num-integer",
+ "num-traits",
+ "serde",
+]
+
 [[package]]
 name = "bincode"
 version = "1.3.1"
@@ -111,7 +147,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d8fb2d74254a3a0b5cac33ac9f8ed0e44aa50378d9dbb2e5d83bd21ed1dc2c8a"
 dependencies = [
  "arrayref",
- "arrayvec",
+ "arrayvec 0.5.1",
  "constant_time_eq",
 ]
 
@@ -122,7 +158,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ce4f9586c9a3151c4b49b19e82ba163dd073614dd057e53c969e1a4db5b52720"
 dependencies = [
  "arrayref",
- "arrayvec",
+ "arrayvec 0.5.1",
  "cc",
  "cfg-if",
  "constant_time_eq",
@@ -130,18 +166,57 @@ dependencies = [
  "digest 0.9.0",
 ]
 
+[[package]]
+name = "block-buffer"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0940dc441f31689269e10ac70eb1002a3a1d3ad1390e030043662eb7fe4688b"
+dependencies = [
+ "block-padding",
+ "byte-tools",
+ "byteorder",
+ "generic-array 0.12.3",
+]
+
+[[package]]
+name = "block-padding"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa79dedbb091f449f1f39e53edf88d5dbe95f895dae6135a8d7b881fb5af73f5"
+dependencies = [
+ "byte-tools",
+]
+
 [[package]]
 name = "boolinator"
 version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cfa8873f51c92e232f9bac4065cddef41b714152812bfc5f7672ba16d6ef8cd9"
 
+[[package]]
+name = "bufstream"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "40e38929add23cdf8a366df9b0e088953150724bcbe5fc330b0d8eb3b328eec8"
+
+[[package]]
+name = "byte-tools"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3b5ca7a04898ad4bcd41c90c5285445ff5b791899bb1b0abdd2a2aa791211d7"
+
 [[package]]
 name = "byteorder"
 version = "1.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "08c48aae112d48ed9f069b33538ea9e3e90aa263cfa3d1c24309612b1f7472de"
 
+[[package]]
+name = "bytes"
+version = "0.5.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0e4cec68f03f32e44924783795810fa50a7035d8c8ebe78580ad7e6c703fba38"
+
 [[package]]
 name = "cc"
 version = "1.0.58"
@@ -162,6 +237,7 @@ checksum = "c74d84029116787153e02106bf53e66828452a4b325cc8652b788b5967c0a0b6"
 dependencies = [
  "num-integer",
  "num-traits",
+ "serde",
  "time",
 ]
 
@@ -195,12 +271,48 @@ version = "0.7.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "475bd7aa7680b4ed8f6bb59745e882bcbaeb39326532bb79ffb1716480d9a274"
 
+[[package]]
+name = "const-random"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2f1af9ac737b2dd2d577701e59fd09ba34822f6f2ebdb30a7647405d9e55e16a"
+dependencies = [
+ "const-random-macro",
+ "proc-macro-hack",
+]
+
+[[package]]
+name = "const-random-macro"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "25e4c606eb459dd29f7c57b2e0879f2b6f14ee130918c2b78ccb58a9624e6c7a"
+dependencies = [
+ "getrandom",
+ "proc-macro-hack",
+]
+
 [[package]]
 name = "constant_time_eq"
 version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "245097e9a4535ee1e3e3931fcfcd55a796a44c643e8596ff6566d68f09b87bbc"
 
+[[package]]
+name = "core-foundation"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57d24c7a13c43e870e37c1556b74555437870a04514f7685f5b354e090567171"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
+[[package]]
+name = "core-foundation-sys"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b3a71ab494c0b5b860bdc8407ae08978052417070c2ced38573a9157ad75b8ac"
+
 [[package]]
 name = "cranelift-bforest"
 version = "0.59.0"
@@ -261,6 +373,15 @@ dependencies = [
  "target-lexicon",
 ]
 
+[[package]]
+name = "crc32fast"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba125de2af0df55319f41944744ad91c71113bf74a4646efff39afe1f6842db1"
+dependencies = [
+ "cfg-if",
+]
+
 [[package]]
 name = "crossbeam-deque"
 version = "0.7.3"
@@ -278,7 +399,7 @@ version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "058ed274caafc1f60c4997b5fc07bf7dc7cca454af7c6e81edffe5f33f70dace"
 dependencies = [
- "autocfg",
+ "autocfg 1.0.0",
  "cfg-if",
  "crossbeam-utils",
  "lazy_static",
@@ -304,7 +425,7 @@ version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c3c7c73a2d1e9fc0886a08b93e98eb643461230d5f1925e4036204d5f2e261a8"
 dependencies = [
- "autocfg",
+ "autocfg 1.0.0",
  "cfg-if",
  "lazy_static",
 ]
@@ -389,6 +510,17 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "derive_utils"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3df5480412da86cdf5d6b7f3b682422c84359ff7399aa658df1d15ee83244b1d"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "digest"
 version = "0.8.1"
@@ -519,6 +651,12 @@ dependencies = [
  "synstructure",
 ]
 
+[[package]]
+name = "fake-simd"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e88a8acf291dafb59c2d96e8f59828f3838bb1a70398823ade51a84de6a6deed"
+
 [[package]]
 name = "fce"
 version = "0.1.1"
@@ -582,6 +720,19 @@ dependencies = [
  "serde_json",
 ]
 
+[[package]]
+name = "flate2"
+version = "1.0.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68c90b0fc46cf89d227cc78b40e494ff81287a92dd07631e5af0d06fe3cf885e"
+dependencies = [
+ "cfg-if",
+ "crc32fast",
+ "libc",
+ "libz-sys",
+ "miniz_oxide",
+]
+
 [[package]]
 name = "fluence"
 version = "0.2.0"
@@ -667,6 +818,21 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
+[[package]]
+name = "foreign-types"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
+dependencies = [
+ "foreign-types-shared",
+]
+
+[[package]]
+name = "foreign-types-shared"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
+
 [[package]]
 name = "frepl"
 version = "0.1.1"
@@ -764,13 +930,23 @@ version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "aaf91faf136cb47367fa430cd46e37a788775e7fa104f8b4bcb3861dc389b724"
 
+[[package]]
+name = "hashbrown"
+version = "0.6.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e6073d0ca812575946eb5f35ff68dbe519907b25c42530389ff946dc84c6ead"
+dependencies = [
+ "ahash",
+ "autocfg 0.1.7",
+]
+
 [[package]]
 name = "hashbrown"
 version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "34f595585f103464d8d2f6e9864682d74c1601fed5e07d62b1c9058dba8246fb"
 dependencies = [
- "autocfg",
+ "autocfg 1.0.0",
 ]
 
 [[package]]
@@ -818,14 +994,25 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
 
+[[package]]
+name = "idna"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02e2673c30ee86b5b96a9cb52ad15718aa1f966f5ab9ad54a8b95d5ca33120a9"
+dependencies = [
+ "matches",
+ "unicode-bidi",
+ "unicode-normalization",
+]
+
 [[package]]
 name = "indexmap"
 version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5b88cd59ee5f71fea89a62248fc8f387d44400cefe05ef548466d61ced9029a7"
 dependencies = [
- "autocfg",
- "hashbrown",
+ "autocfg 1.0.0",
+ "hashbrown 0.8.1",
  "serde",
 ]
 
@@ -851,6 +1038,17 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "io-enum"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e467fc10409cca1c49840b62ccd7993463f2137cab21f863d917b316b2287336"
+dependencies = [
+ "derive_utils",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "ipfs-effector"
 version = "0.1.0"
@@ -885,17 +1083,41 @@ version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3576a87f2ba00f6f106fdfcd16db1d698d648a26ad8e0573cad8537c3c362d2a"
 
+[[package]]
+name = "lexical"
+version = "4.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0afaeae1c07c575338ef6809875bfea8daa9ea8b2ee381ef1f93ba0c6e32f003"
+dependencies = [
+ "cfg-if",
+ "lexical-core 0.6.2",
+ "rustc_version",
+]
+
+[[package]]
+name = "lexical-core"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d7043aa5c05dd34fb73b47acb8c3708eac428de4545ea3682ed2f11293ebd890"
+dependencies = [
+ "arrayvec 0.4.12",
+ "cfg-if",
+ "rustc_version",
+ "ryu",
+ "static_assertions 0.3.4",
+]
+
 [[package]]
 name = "lexical-core"
 version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "db65c6da02e61f55dae90a0ae427b2a5f6b3e8db09f58d10efab23af92592616"
 dependencies = [
- "arrayvec",
+ "arrayvec 0.5.1",
  "bitflags",
  "cfg-if",
  "ryu",
- "static_assertions",
+ "static_assertions 1.1.0",
 ]
 
 [[package]]
@@ -904,6 +1126,18 @@ version = "0.2.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a2f02823cf78b754822df5f7f268fb59822e7296276d3e069d8e8cb26a14bd10"
 
+[[package]]
+name = "libz-sys"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af67924b8dd885cccea261866c8ce5b74d239d272e154053ff927dae839f5ae9"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "lock_api"
 version = "0.3.4"
@@ -922,6 +1156,15 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "lru"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0609345ddee5badacf857d4f547e0e5a2e987db77085c24cd887f73573a04237"
+dependencies = [
+ "hashbrown 0.6.3",
+]
+
 [[package]]
 name = "mariadb"
 version = "0.1.0"
@@ -930,6 +1173,12 @@ dependencies = [
  "log",
 ]
 
+[[package]]
+name = "matches"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
+
 [[package]]
 name = "maybe-uninit"
 version = "2.0.0"
@@ -958,7 +1207,7 @@ version = "0.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c198b026e1bbf08a937e94c6c60f9ec4a2267f5b0d2eec9c1b21b061ce2be55f"
 dependencies = [
- "autocfg",
+ "autocfg 1.0.0",
 ]
 
 [[package]]
@@ -979,6 +1228,104 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "mysql"
+version = "0.1.0"
+dependencies = [
+ "mysql 18.2.0",
+]
+
+[[package]]
+name = "mysql"
+version = "18.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0f992910bfa4af992c2857451925ca0be7b41107a07939fa2e3879a621fc74ba"
+dependencies = [
+ "bufstream",
+ "io-enum",
+ "libc",
+ "lru",
+ "mysql_common",
+ "named_pipe",
+ "native-tls",
+ "net2",
+ "nix 0.17.0",
+ "percent-encoding",
+ "serde",
+ "serde_json",
+ "twox-hash",
+ "url",
+ "winapi",
+]
+
+[[package]]
+name = "mysql_common"
+version = "0.20.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e3950cf532b88574a05c3fcd4f1b1e0cd0b84883462ae6811298fe7c3c92edc"
+dependencies = [
+ "base64",
+ "bigdecimal",
+ "bitflags",
+ "byteorder",
+ "bytes",
+ "chrono",
+ "failure",
+ "flate2",
+ "lazy_static",
+ "lexical",
+ "num-bigint",
+ "num-traits",
+ "rand",
+ "regex",
+ "rust_decimal",
+ "serde",
+ "serde_json",
+ "sha1",
+ "sha2",
+ "time",
+ "twox-hash",
+ "uuid",
+]
+
+[[package]]
+name = "named_pipe"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ad9c443cce91fc3e12f017290db75dde490d685cdaaf508d7159d7cf41f0eb2b"
+dependencies = [
+ "winapi",
+]
+
+[[package]]
+name = "native-tls"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b0d88c06fe90d5ee94048ba40409ef1d9315d86f6f38c2efdaad4fb50c58b2d"
+dependencies = [
+ "lazy_static",
+ "libc",
+ "log",
+ "openssl",
+ "openssl-probe",
+ "openssl-sys",
+ "schannel",
+ "security-framework",
+ "security-framework-sys",
+ "tempfile",
+]
+
+[[package]]
+name = "net2"
+version = "0.2.34"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2ba7c918ac76704fb42afcbbb43891e72731f3dcca3bef2a19786297baf14af7"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "winapi",
+]
+
 [[package]]
 name = "nix"
 version = "0.14.1"
@@ -1018,24 +1365,41 @@ dependencies = [
  "void",
 ]
 
+[[package]]
+name = "nodrop"
+version = "0.1.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72ef4a56884ca558e5ddb05a1d1e7e1bfd9a68d9ed024c21704cc98872dae1bb"
+
 [[package]]
 name = "nom"
 version = "5.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ffb4262d26ed83a1c0a33a38fe2bb15797329c85770da05e6b828ddb782627af"
 dependencies = [
- "lexical-core",
+ "lexical-core 0.7.4",
  "memchr",
  "version_check",
 ]
 
+[[package]]
+name = "num-bigint"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "090c7f9998ee0ff65aa5b723e4009f7b217707f1fb5ea551329cc4d6231fb304"
+dependencies = [
+ "autocfg 1.0.0",
+ "num-integer",
+ "num-traits",
+]
+
 [[package]]
 name = "num-integer"
 version = "0.1.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8d59457e662d541ba17869cf51cf177c0b5f0cbf476c66bdc90bf1edac4f875b"
 dependencies = [
- "autocfg",
+ "autocfg 1.0.0",
  "num-traits",
 ]
 
@@ -1045,7 +1409,7 @@ version = "0.2.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ac267bcc07f48ee5f8935ab0d24f316fb722d7a1292e2913f0cc196b29ffd611"
 dependencies = [
- "autocfg",
+ "autocfg 1.0.0",
 ]
 
 [[package]]
@@ -1070,6 +1434,45 @@ version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b631f7e854af39a1739f401cf34a8a013dfe09eac4fa4dba91e9768bd28168d"
 
+[[package]]
+name = "opaque-debug"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2839e79665f131bdb5782e51f2c6c9599c133c6098982a54c794358bf432529c"
+
+[[package]]
+name = "openssl"
+version = "0.10.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8d575eff3665419f9b83678ff2815858ad9d11567e082f5ac1814baba4e2bcb4"
+dependencies = [
+ "bitflags",
+ "cfg-if",
+ "foreign-types",
+ "lazy_static",
+ "libc",
+ "openssl-sys",
+]
+
+[[package]]
+name = "openssl-probe"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77af24da69f9d9341038eba93a073b1fdaaa1b788221b00a69bce9e762cb32de"
+
+[[package]]
+name = "openssl-sys"
+version = "0.9.58"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a842db4709b604f0fe5d1170ae3565899be2ad3d9cbc72dedc789ac0511f78de"
+dependencies = [
+ "autocfg 1.0.0",
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "page_size"
 version = "0.4.2"
@@ -1110,12 +1513,30 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "percent-encoding"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
+
+[[package]]
+name = "pkg-config"
+version = "0.3.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d36492546b6af1463394d46f0c834346f31548646f6ba10849802c9c9a27ac33"
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "237a5ed80e274dbc66f86bd59c1e25edc039660be53194b5fe0a482e0f2612ea"
 
+[[package]]
+name = "proc-macro-hack"
+version = "0.5.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "99c605b9a0adc77b7211c6b1f722dcb613d68d66859a44f3d485a6da332b0598"
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.19"
@@ -1209,7 +1630,7 @@ version = "1.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "62f02856753d04e03e26929f820d0a0a337ebe71f849801eea335d464b349080"
 dependencies = [
- "autocfg",
+ "autocfg 1.0.0",
  "crossbeam-deque",
  "either",
  "rayon-core",
@@ -1279,6 +1700,15 @@ version = "0.6.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "26412eb97c6b088a6997e05f69403a802a92d520de2f8e63c2b65f9e0f47c4e8"
 
+[[package]]
+name = "remove_dir_all"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3acd125665422973a33ac9d3dd2df85edad0f4ae9b00dafb1a05e43a9f5ef8e7"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "rust-argon2"
 version = "0.7.0"
@@ -1291,6 +1721,16 @@ dependencies = [
  "crossbeam-utils",
 ]
 
+[[package]]
+name = "rust_decimal"
+version = "1.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95ba36e8c41bf675947e200af432325f332f60a0aea0ef2dc456636c2f6037d7"
+dependencies = [
+ "num-traits",
+ "serde",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.16"
@@ -1354,12 +1794,45 @@ version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "50b8b2cd387f744f69469aaed197954ba4c0ecdb31e02edf99b023e0df11178a"
 
+[[package]]
+name = "schannel"
+version = "0.1.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f05ba609c234e60bee0d547fe94a4c7e9da733d1c962cf6e59efa4cd9c8bc75"
+dependencies = [
+ "lazy_static",
+ "winapi",
+]
+
 [[package]]
 name = "scopeguard"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
+[[package]]
+name = "security-framework"
+version = "0.4.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "64808902d7d99f78eaddd2b4e2509713babc3dc3c85ad6f4c447680f3c01e535"
+dependencies = [
+ "bitflags",
+ "core-foundation",
+ "core-foundation-sys",
+ "libc",
+ "security-framework-sys",
+]
+
+[[package]]
+name = "security-framework-sys"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "17bf11d99252f512695eb468de5516e5cf75455521e69dfe343f3b74e4748405"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
 [[package]]
 name = "semver"
 version = "0.9.0"
@@ -1425,6 +1898,24 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "sha1"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"
+
+[[package]]
+name = "sha2"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a256f46ea78a0c0d9ff00077504903ac881a1dafdc20da66545699e7776b3e69"
+dependencies = [
+ "block-buffer",
+ "digest 0.8.1",
+ "fake-simd",
+ "opaque-debug",
+]
+
 [[package]]
 name = "shlex"
 version = "0.1.1"
@@ -1462,6 +1953,12 @@ version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3757cb9d89161a2f24e1cf78efa0c1fcff485d18e3f55e0aa3480824ddaa0f3f"
 
+[[package]]
+name = "static_assertions"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f3eb36b47e512f8f1c9e3d10c2c1965bc992bd9cdb024fa581e2194501c83d3"
+
 [[package]]
 name = "static_assertions"
 version = "1.1.0"
@@ -1515,6 +2012,20 @@ version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ab0e7238dcc7b40a7be719a25365910f6807bd864f4cce6b2e6b873658e2b19d"
 
+[[package]]
+name = "tempfile"
+version = "3.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "rand",
+ "redox_syscall",
+ "remove_dir_all",
+ "winapi",
+]
+
 [[package]]
 name = "term"
 version = "0.5.2"
@@ -1599,6 +2110,12 @@ dependencies = [
  "chrono",
 ]
 
+[[package]]
+name = "tinyvec"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "238ce071d267c5710f9d31451efec16c5ee22de34df17cc05e56cbc92e967117"
+
 [[package]]
 name = "toml"
 version = "0.5.6"
@@ -1622,6 +2139,15 @@ dependencies = [
  "unicode-width",
 ]
 
+[[package]]
+name = "twox-hash"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3bfd5b7557925ce778ff9b9ef90e3ade34c524b5ff10e239c69a42d546d2af56"
+dependencies = [
+ "rand",
+]
+
 [[package]]
 name = "typenum"
 version = "1.12.0"
@@ -1652,6 +2178,24 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "unicode-bidi"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"
+dependencies = [
+ "matches",
+]
+
+[[package]]
+name = "unicode-normalization"
+version = "0.1.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6fb19cf769fa8c6a80a162df694621ebeb4dafb606470b2b2fce0be40a98a977"
+dependencies = [
+ "tinyvec",
+]
+
 [[package]]
 name = "unicode-segmentation"
 version = "1.6.0"
@@ -1670,6 +2214,17 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
 
+[[package]]
+name = "url"
+version = "2.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "829d4a8476c35c9bf0bbce5a3b23f4106f79728039b726d292bb93bc106787cb"
+dependencies = [
+ "idna",
+ "matches",
+ "percent-encoding",
+]
+
 [[package]]
 name = "utf8parse"
 version = "0.1.1"
@@ -1691,6 +2246,12 @@ dependencies = [
  "rand",
 ]
 
+[[package]]
+name = "vcpkg"
+version = "0.2.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6454029bf181f092ad1b853286f23e2c507d8e8194d01d92da4a55c274a5508c"
+
 [[package]]
 name = "vec_map"
 version = "0.8.2"
diff --git a/examples/mariadb/src/main.rs b/examples/mariadb/src/main.rs
index 827d80d7..d8f05823 100644
--- a/examples/mariadb/src/main.rs
+++ b/examples/mariadb/src/main.rs
@@ -14,22 +14,21 @@
  * limitations under the License.
  */
 
-mod path;
-
 use fluence::fce;
 use fluence::WasmLogger;
 use crate::path::to_full_path;
 
 use std::path::PathBuf;
 
+const ROOT_PASSWORD_ENV_NAME: &str = "ROOT_PASSWORD";
+const ROOT_DB_NAME_ENV_NAME: &str = "ROOT_DB_NAME";
 const PASSWORD_ENV_NAME: &str = "PASSWORD";
 const DB_NAME_ENV_NAME: &str = "DB_NAME";
+
 const PORT_ENV_NAME: &str = "PORT";
 const USER_ENV_NAME: &str = "USER";
 const HOST_ENV_NAME: &str = "HOST_ENV_NAME";
 
-const TMP_FILE_NAME: &str = "mariadb.sql";
-
 pub fn main() {
     WasmLogger::init_with_level(log::Level::Info).unwrap();
 }
@@ -62,27 +61,25 @@ impl ExecutionResult {
 pub fn sql(sql: String) -> ExecutionResult {
     log::info!("sql called with command {}", sql);
 
-    let sql_cmd_filepath = TMP_FILE_NAME.to_string();
+    let (password, user_name, db_name) = match fluence::get_current_user() {
+        "root" => (
+            std::env::var(ROOT_PASSWORD_ENV_NAME).expect("password env variable should be set"),
+            "root",
+            std::env::var(ROOT_DB_NAME_ENV_NAME).expect("db name env variable should be set"),
+        ),
+        user_name => (
+            std::env::var(PASSWORD_ENV_NAME).expect("password env variable should be set"),
+            user_name.as_str(),
+            std::env::var(DB_NAME_ENV_NAME).expect("db name env variable should be set"),
+        ),
+    };
 
-    if let Err(e) = std::fs::write(PathBuf::from(sql_cmd_filepath), sql) {
-        return ExecutionResult {
-            result: String::new(),
-            // it is safe because write return only OS errors
-            error_code: e.raw_os_error().unwrap(),
-        };
-    }
-
-    let sql_cmd_filepath = to_full_path(TMP_FILE_NAME);
-
-    let password = std::env::var(PASSWORD_ENV_NAME).unwrap_or_else(|_| "toor".to_string());
-    let db_name = std::env::var(DB_NAME_ENV_NAME).unwrap_or_else(|_| "test".to_string());
-    let port = std::env::var(PORT_ENV_NAME).unwrap_or_else(|_| "3306".to_string());
-    let user = std::env::var(USER_ENV_NAME).unwrap_or_else(|_| "root".to_string());
-    let host = std::env::var(HOST_ENV_NAME).unwrap_or_else(|_| "127.0.0.1".to_string());
+    let port = std::env::var(PORT_ENV_NAME).expect("port env variable should be set");
+    let host = std::env::var(HOST_ENV_NAME).expect("host env variable should be set");
 
     let cmd = format!(
-        "-u{} -p{} -h{} -P{} -D{} < {}",
-        user, password, host, port, db_name, sql_cmd_filepath
+        "-u{} -p{} -h{} -P{} -D{} < <(echo \"{}\")",
+        user_name, password, host, port, db_name, sql
     );
 
     let result = mariadb(cmd);
diff --git a/examples/mariadb/src/path.rs b/examples/mariadb/src/path.rs
deleted file mode 100644
index 4f7d0d5e..00000000
--- a/examples/mariadb/src/path.rs
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Copyright 2020 Fluence Labs Limited
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-pub(super) fn to_full_path<S>(cmd: S) -> String
-where
-    S: Into<String>,
-{
-    use std::path::Path;
-    use std::path::Component;
-
-    let cmd = cmd.into();
-    let path = Path::new(&cmd);
-
-    let mut components = path.components();
-    let is_absolute = components.next() == Some(Component::RootDir);
-
-    if !is_absolute {
-        return cmd;
-    }
-
-    let parent = match components.next() {
-        Some(Component::Normal(path)) => path.to_str().unwrap(),
-        _ => return cmd,
-    };
-
-    match std::env::var(parent) {
-        Ok(to_dir) => {
-            let mut full_path = std::path::PathBuf::from(to_dir);
-
-            // TODO: optimize this
-            #[allow(clippy::while_let_on_iterator)]
-            while let Some(component) = components.next() {
-                full_path.push(component);
-            }
-            full_path.to_string_lossy().into_owned()
-        }
-        Err(_) => cmd,
-    }
-}