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postgres/sql/toast_extended_storage.sql

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Fix compressed TOASTs encryption/decryption (#76) If TOAST data gets compressed, it has an extended header containing compression info. We used to encrypt this header along with the actual data which in turn caused a crash as PG needs this data in later stages. So it should be taken into account while encrypting data during externalisation. Then, during detoasting, we should not decrypt this compression header as it is being extracted with the data with the first TOAST chunk. So, copy the first N bytes (now it is 4 bytes) of the first chunk as it is and decrypt the rest of the data. Fixes https://github.com/Percona-Lab/postgres-tde-ext/issues/63
2 years ago
-- test https://github.com/Percona-Lab/postgres-tde-ext/issues/63
CREATE EXTENSION pg_tde;
CREATE TEMP TABLE src (f1 text) USING pg_tde;
-- Crash on INSERT
INSERT INTO src
VALUES('0.55859909742449630.44658969494913570.54075930161272720.173117157913014630.61483029376206380.65764492874377220.341317552838924730.367982528684053230.175345977931963270.168412839608874880.00154803678245296620.82706532396263290.74748634462447190.090831815264683650.390919315685386960.99951082699941550.9977981693287330.6988579613645320.310754450662202640.90325242484683190.75374800591547490.26680100643896230.55751915566773990.57902456214791110.36183153154123460.63524053266029830.78389378855711180.19584445869629020.199333924650425760.82155191593829560.7371944732869880.183910466357891660.0147813222233452720.3747022411129810.49101561236565550.95483453706535880.35594888092451550.43381965349401440.46361549602747920.50604155870332760.86586716524835540.63478889357891990.77509493569207090.86665305443338790.64852060828658550.50280760242256580.21800585609741340.096173392125813220.0261400320036884180.33800342276157360.485498510272187160.69492885593869610.14719438590370170.57633710730539910.6854376608363930.162803430883830650.28902094699378880.93884121928877070.4124819510126210.69895400258256470.61386295568035320.019902272612943640.85235316437206570.0940431968488260.272794218757168140.61549039934229780.422575394607501930.67002314675933960.465323258961145570.163191821055387760.0126060416991824460.40893698240906830.31893797439819460.15469713662310670.55528689194077320.66788769570588440.71025660771475390.38117379415620990.0220335908759561330.107673951160519810.71950609969184590.54341042925206180.024053937929693570.74203099973156790.035064651259838710.86887319172737380.335093303911782050.7483180995321150.97612135845236070.084654394261215680.76508793255901520.68191364158327270.64505339286832350.448618338317764650.335092422718133550.55149498651635520.9413160253094210.9168195414285170.98684856309613790.60400653549636750.85646368669913330.58837858335250370.9799739681795840.48079146876587030.218616079813109820.9302335200895790.4780449500011730.424050492872935840.063479437634682330.98094393207488960.335273138834828230.48560551700566790.139203310225991970.62595627061874380.71122415168232940.152848330691444540.89199132936279750.27800941859127290.95439564372772280.84837555269067490.75100083734460510.362767538265398760.235976384421268110.61187422491548470.9495830853409060.89514971758309940.26872924068443680.74626444803809160.139587450203541460.302395254482703770.78411327172089250.38966191620694680.198917136896949340.64377926785777470.293260719678428260.44648764937475450.37420519795286180.92220518748025750.0073108929093146370.93143459249930790.61565949670551650.95409849589104280.70559701135921380.80911223952124960.78688763724234260.0143429787186462040.47314838377612680.220085013432371750.74895079799389160.34241785580036590.377476662711184960.55856596798903090.72300200663394070.93372512510565420.48213601319131170.98122442024471220.346628953420145660.74820202768550950.36134870838736320.53096217018068880.91813333111021930.16912775074741670.37503790891484610.9532471869686030.125924225709406650.481359293779658250.49808987733380960.292530386328931250.87891128070888010.190872215535672130.8880398891158570.312849610687170760.83382258936561130.88683286703304340.54819728672968980.55198306885689990.94518489093830830.82370179536934040.39422249429194810.88920643110698830.100781813305392380.156896688655811630.176728786940858470.418953555096873260.49179322828441930.6482244643731250.50630017133792920.96824089562929780.48649962422895390.224128640753047840.65318604085187480.0277597024087572470.269592268429819760.078229807252904630.12959218454427490.76024146340840760.53005245019718040.208874546770384530.55257426353213910.5937585938899110.80002298982932360.176800500254526760.80793461098073150.73215202402765760.89330730727462560.0317516822834684740.160090174689148550.51532774354845980.70921991745912830.138735433408188950.57752467002560.403150487295366840.40749394747573110.66251587358165880.35063881167575020.9599596099677250.445932818660210060.287245889223862740.8257369856611840.70400052356170930.30353378134511090.393039351875958730.362370380599912560.38847117294574
SELECT * FROM src;
DROP TABLE src;
CREATE TABLE src2 (f1 TEXT) USING pg_tde;
INSERT INTO src2
VALUES('0.55859909742449630.44658969494913570.54075930161272720.173117157913014630.61483029376206380.65764492874377220.341317552838924730.367982528684053230.175345977931963270.168412839608874880.00154803678245296620.82706532396263290.74748634462447190.090831815264683650.390919315685386960.99951082699941550.9977981693287330.6988579613645320.310754450662202640.90325242484683190.75374800591547490.26680100643896230.55751915566773990.57902456214791110.36183153154123460.63524053266029830.78389378855711180.19584445869629020.199333924650425760.82155191593829560.7371944732869880.183910466357891660.0147813222233452720.3747022411129810.49101561236565550.95483453706535880.35594888092451550.43381965349401440.46361549602747920.50604155870332760.86586716524835540.63478889357891990.77509493569207090.86665305443338790.64852060828658550.50280760242256580.21800585609741340.096173392125813220.0261400320036884180.33800342276157360.485498510272187160.69492885593869610.14719438590370170.57633710730539910.6854376608363930.162803430883830650.28902094699378880.93884121928877070.4124819510126210.69895400258256470.61386295568035320.019902272612943640.85235316437206570.0940431968488260.272794218757168140.61549039934229780.422575394607501930.67002314675933960.465323258961145570.163191821055387760.0126060416991824460.40893698240906830.31893797439819460.15469713662310670.55528689194077320.66788769570588440.71025660771475390.38117379415620990.0220335908759561330.107673951160519810.71950609969184590.54341042925206180.024053937929693570.74203099973156790.035064651259838710.86887319172737380.335093303911782050.7483180995321150.97612135845236070.084654394261215680.76508793255901520.68191364158327270.64505339286832350.448618338317764650.335092422718133550.55149498651635520.9413160253094210.9168195414285170.98684856309613790.60400653549636750.85646368669913330.58837858335250370.9799739681795840.48079146876587030.218616079813109820.9302335200895790.4780449500011730.424050492872935840.063479437634682330.98094393207488960.335273138834828230.48560551700566790.139203310225991970.62595627061874380.71122415168232940.152848330691444540.89199132936279750.27800941859127290.95439564372772280.84837555269067490.75100083734460510.362767538265398760.235976384421268110.61187422491548470.9495830853409060.89514971758309940.26872924068443680.74626444803809160.139587450203541460.302395254482703770.78411327172089250.38966191620694680.198917136896949340.64377926785777470.293260719678428260.44648764937475450.37420519795286180.92220518748025750.0073108929093146370.93143459249930790.61565949670551650.95409849589104280.70559701135921380.80911223952124960.78688763724234260.0143429787186462040.47314838377612680.220085013432371750.74895079799389160.34241785580036590.377476662711184960.55856596798903090.72300200663394070.93372512510565420.48213601319131170.98122442024471220.346628953420145660.74820202768550950.36134870838736320.53096217018068880.91813333111021930.16912775074741670.37503790891484610.9532471869686030.125924225709406650.481359293779658250.49808987733380960.292530386328931250.87891128070888010.190872215535672130.8880398891158570.312849610687170760.83382258936561130.88683286703304340.54819728672968980.55198306885689990.94518489093830830.82370179536934040.39422249429194810.88920643110698830.100781813305392380.156896688655811630.176728786940858470.418953555096873260.49179322828441930.6482244643731250.50630017133792920.96824089562929780.48649962422895390.224128640753047840.65318604085187480.0277597024087572470.269592268429819760.078229807252904630.12959218454427490.76024146340840760.53005245019718040.208874546770384530.55257426353213910.5937585938899110.80002298982932360.176800500254526760.80793461098073150.73215202402765760.89330730727462560.0317516822834684740.160090174689148550.51532774354845980.70921991745912830.138735433408188950.57752467002560.403150487295366840.40749394747573110.66251587358165880.35063881167575020.9599596099677250.445932818660210060.287245889223862740.8257369856611840.70400052356170930.30353378134511090.393039351875958730.362370380599912560.38847117294574
SELECT * FROM src2;
DROP TABLE src2;
DROP EXTENSION pg_tde;